I've posted some of this information elsewhere, but thought I'd put together some more thoughts for folks here as I've had a little bit more use with it. Currently, I've only played BF:V, Valheim, and Raft with this keyboard, but also used it for various web browsing and general computer usage thus far. I've had it for about 2 weeks. Overall, I definitely like it.
I'll start with a little background on mechanical keyboards for those of you who, like me, have not had one before:
I've been gaming for many years, but I never had a mechanical keyboard like this. The Z20 is optical-mechanical, but it still has the same type of physical design/movement (the actual switch actuation is made optically instead of through mechanical contacts though). If you've never had a mechanical-switch keyboard before, you should do some research on that to see if you're willing to deal with the trade-offs. There are benefits to mechanical style that are worth it for many gamers, but if you had to do a ton of typing, I'd be pretty hesitant to go with a keyboard like this due to the noise it makes. Just to be clear, this noise is not a problem with EVGA's keyboard specifically, it is just a byproduct of the mechanical switch keyboards in general. Some other videos to help:
video1.
video2 (he says "PCB Board" at some point *shudders in EE*...sorry...he has some great info after that). This is a loud keyboard. There are louder keyboards out there and I don't think it is unusually loud for a mechanical keyboard, but again, if you've never had one before, be prepared.
On to Pros:
1. It is beautiful. I am not a fan of rainbow RGB on everything and appreciate more subtle things. While some have commented about how "huge" the EVGA logo is, I don't find it intrusive. It is not lit up specially, doesn't flash at you or something, and I mostly don't even notice it's there. All that said, I have toned down the lighting to about 50% intensity and have it on a solid blue that seems to match my case and X17 nicely (which is also toned down and just blue for now). Being fully adjustable, I can set the lighting however I want, and a soft blue solid tone is pleasant to me.
2. The TOF sensor is a fun feature. I just use it to make the keyboard get dark as I walk away. I do not like all the lights on my system to stay on when I'm not at it, so something like this is much more helpful than remembering to hit a button every time. I leave my computer up F@H, so it is on all the time and I like that I can have the lights turn off on this automatically. I haven't tried the sleep settings as that's not something I have my computer do. It is either on and doing things, or it is off.
3. Gaming has gone very smoothly. I have done more gaming than typing so far (which is to be expected on my desktop) and I think the best compliment that I can give a keyboard totally different to one I've owned before is that there was zero struggle or issues jumping right into games with it. I will say that someone on my discord voice channel asked me what all the clicking sounds were while playing Raft together. This has never happened to me before, but I do use a desk-microphone (omni) that sits literally right next to the top left corner of the keyboard. I may have to adjust this lol.
4. Volume roller is nice. I've never had one of these before, I wasn't sure if I'd use it or not. With switching back and forth between headphones and speakers constantly, it has been handy to have a physical thing I can adjust quickly to turn things up or down.
5. Palm wrest is comfortable for me...mostly. This is squishier than some, but not in a memory-foam or gel-pad kind of way. More of a leather chair kind of way, but you do bottom out. My desk is made of wood and I previously haven't even been using a palm-wrest so it's an upgrade. Using it, I sometimes wish it was about 3/8" longer (direction between me and keyboard) as the pressure point in my palm sits right on the bottom edge that isn't as soft. The reason this is a Pro is that I am glad it exists, think the magnetic attachment is fantastic, and I'd much rather use it than go without. I think it's funny that previously I was worried about it cluttering up my desk and taking up too much room, and now I wish it was just a little bigger lol.
Cons:
1. Noise. As indicated above, this is not really specifically at fault with this keyboard, just mechanical keyboards in general as they are much louder than I would prefer. If all you've ever used are membrane and scissor-mechanism keyboard before, the noise from this thing may be a shock to you. I would be grumpy if I had to use this in an office or shared space and needed to type a lot on it.
2. Textured gaming keys vs F and J key bumps. This is an odd one. I don't really dislike the textured gaming keys. The issue is that the normal bumps for the F and J keys are so small that I can barely feel them. I end up trying to find my place (without looking) by figuring out which other fingers are on the textured gaming keys and I don't always remember, which means I end up one key over sometimes. I think this will get better with time, but it is something I did not consider when purchasing the keyboard, and I'd like the feedback to get to them that those two keys could have been done a little better for quick positioning when typing.
Other:
-I haven't used the macro keys. I didn't think I'd have much use for them anyway, but I wanted the TOF sensor so I bought the Z20.