It's probably well-known by now that you need the Synapse software to unlock a good chunk of features this keyboard has, but did you also know that the incredibly terribly written manual also neglects to mention details like needing to download additional software and offers misleading information? Yeah, neither did I, but after spending 3 hours with Razer technical support I found that to be the case. One hour was spent with an agent who kept putting me on a silent hold and wouldn't respond and two hours with another agent who put me on hold a lot as she came to grips with the fact that what I saw on my screen didn't match what was on hers plus needing time to research/request help from people on her end.So, what did I discover?Well, one of the features of this keyboard is creating macros, yes? That extra row of keys on the left-hand side labeled M1-M5? Looking at the attached picture, one would think you press a key-combo (Function + F9), press whatever you want the macro to be, press the key-combo again, then one of the M-buttons, and from now on any time you press that Macro key you'll repeat what you just made, yes? Nope, that's not entirely how it works. Oh, you MADE a macro, sure, but the keyboard somehow doesn't already know how to use it even if you have Synapse installed. No, what you need to do is go to the Dashboard of the Synapse software, click Modules, and download the module for Macro. THEN you can actually use the macro you made. Do you see anything similar to "Download the Macro Module in the Dashboard" in the attached picture? No, no you do not. Minor detail, I suppose, but when giving a step-by-step, skipping the FIRST step is very counterproductive.Another fun little fact is, if you look at the picture, you'll see key combos for how to change the lighting patterns and colors. Function key + CTRL + a number and you'll have a different pattern. Press that combo again and you change colors. Seems pretty simple, right? Wrong. Apparently, that's an EXAMPLE chart...just without the word "Example" anywhere on the page. The second agent on the phone merely referred me to YouTube videos on how to program these in because, I suppose, they don't have example keyboards and software to use and have to rely on screenshots and knowledge-base articles. I've only had this keyboard in my possession for a day, so I haven't had time to watch YouTube videos on how to decipher the puzzle that is the Chroma Effects. Obviously, since the combos listed in the manual don't do squat, I have to figure out something else.I even had to instruct the agent on how the Gaming Mode function worked because the manual doesn't mention that having it "off" in the Synapse software means it is then toggled by the key combo, whereas having it "Enabled In-Game" does exactly that and "Always" means it is literally always on no matter what you do (or until you turn it off in Synapse).A fun bonus was when the 'R' key on this brand-new keyboard stopped working for some reason while I was still testing it. At that time, I had nothing programmed and was merely installing the Synapse software. Every other key worked, but 'R' just...was taking a break, a nap, or was on hiatus while the rest of the keyboard was still functional. I thought I had a defective keyboard because, let's be honest, I had a manual telling me to do things that didn't work so having a specific key not function seemed to confirm something was wrong with it. Shortly after a reboot, the key was working again, as you can tell by the fact I'm not typing in a strange way.I have a word or two for whatever absentminded professor wrote this documentation: find someone who hasn't used the keyboard before and have them follow the manual you created and see how well it goes. THEN make the necessary corrections before you send it off with the product. I'd use other, more colorful words, but Amazon would not allow me to actually post this. I'd also advise Razer to provide actual products and software suites for their support representatives to use, so they can accurately answer questions, but something tells me they aren't concerned with customer satisfaction. Otherwise, they wouldn't be sending out poorly-written manuals with their products. Razer also has this bizarre obsession with offering to replace products rather than doing anything that can even remotely be called "troubleshooting", so adjust your expectations accordingly when purchasing ANY Razer products. For example, I purchased a Deathadder V2 mouse over a year ago and contacted Razer regarding cosmetic damage that was occurring because of normal use. Their solution was to use up three weeks of my time by sending a replacement mouse and tape grips instead of just having a way to fix the cosmetic damage.And yes, I know this is not exactly a place where Razer looks for feedback and acts on it, so that's why I've copied and pasted this into a document to send it right to them. I am a simple person with regard to the concept of having proper expectations. If Razer advertises a product can do something, it should be able to do it. If the manual that comes with a product provides instructions on how to do something, following those instructions should work. Finding out that there's missing information or that the listed information doesn't work at all does not build consumer confidence or satisfaction. I'd almost know it down to 2-stars for that, but I'm sure the keyboard itself works perfectly fine...though I may adjust my rating and review to reflect that in the future if that changes. Unlike most who say this sort of thing in their reviews, I DO adjust mine.Update: May 5, 2023 - So I contacted Razer "Support" through their site and used the chat function. After describing the problem, the agent immediately jumped to the concept of performing an RMA replacement. As someone who purchased this thing on May 1, 2023, and received it three days later, I'd go through Amazon if I wanted to do that (which I'm starting to consider). As part of the troubleshooting, the agent suggested I disconnect the keyboard, press and hold Escape+Caps+Space, connect the USB, and let go of the keys afterward. Congratulations! I now have a keyboard in Demo Mode that doesn't respond to input. I had to connect up another keyboard to look up (and realize) I had to perform the same steps to take it out of Demo Mode. So, not only is Razer "Support" obsessed with RMAing products for trivial things, but they're also giving out terrible troubleshooting instructions without providing all the details. That knocks an otherwise good keyboard down from 3-stars (due to the documentation and poor customer service) to 2-stars (due to the absolutely terrible customer service). If I wasn't stuck in a place that literally prevents me from returning this product, at least for the next 15 days, I would be doing so. Instead, I'm trying to unlock the full usage of a product I'm paying for. I'm starting to realize my mistake.To summarize: I need the Synapse software to use macros. I need to turn off/disable the Synapse software to use the Chroma Effect key binds, but then I can't use macros. Absolutely *Brilliant*, Razer. Note: that was sarcasm.Update 2: May 18, 2023 - The keyboard developed an ADDITIONAL problem: the Control key would randomly act like it was stuck. So, for example, if you held down Control and pressed Escape, the Start Menu would pop up, right? Now imagine it doing that without holding down Control. Now imagine this kind of "undocumented feature" also applied to any other key you pressed. To fix this, I could press both Control keys at the same time, using Alt+Ctrl+Del, putting the keyboard into/out of Demo Mode, or exit the Synapse software. However, if I EVER intend to use Macros with this thing, I need the Synapse software...and that software is causing the problem. I did not intend to spend nearly $300 on this keyboard and insurance just to have to work around poor programming and poor documentation. Razer has seriously dropped the ball on this and I've been dealing with 2 weeks of issues. As compensation, they've offered me numerous apologies in a template format, which truly shows they couldn't care less. I'm NEVER purchasing another Razer product and I highly encourage anyone reading this to shop elsewhere. From 2-stars down to 1.