Purchased october 2018 and my keycaps are also still as good as new. Maybe a slight bit slicker but then again i never cleaned them yet. Yes, molded keycaps would be better, but hey, at least they do not start to break/fall off as with my previous keyboard, the significantly more expensive Corsair K70 LUX RGB...
I really love the keyboard. I was looking for palm rest, backlight (not necessarily RGB, but nice to have), TKL with cherry brown. Not a lot of keyboards fit in that category, and the price is, at least compared to the competition, pretty good.
The palm rest base clips that attach the base to the keyboard seemed a bit fragile at first, but i have since de- and remounted the base several times due to LAN events, and it holds perfectly fine.
My only "complaint": While the software to configure the lighting etc. is pretty solid, you somehow cannot have per key color settings in competition mode. Well i don't really use that mode anyway...
Would definitely buy again.
PS: First post, long time reader, decided to finally register