I’d say this is pretty huge for the simple fact that hotswap boards in ISO are pretty damn rare. If it’s cheap enough it might be worth getting just to have one.
The problem I had with the GMMK I had, when just using it for switch testing, is that it doesn’t accept 5-pin switches, necessitating clipping the legs off of PCB mount examples… That sucks when you decide you love those and go to solder them in and want to not have to align every switch manually, or if you decide you don’t like them and want to sell them.
Basically, buy a tofu hot swap from KBD.fans (if you want nice enough along with cheap-ish), a Rama M60-A if you’re a hotswap baller, or a kira 96 key off of kono store (despite that people think I slammed it hard in my review of it, it has its place) if you need most all the keys. There are plenty of other options out there, and some of them are good/bad in their own way, but the lack of 5-pin support along with how rattly the GMMK is… I dunno, I can’t stand it.
Their wrist rests are cool if you have black rubber domed crap keebs at work, and don’t want to leave something nice unsecured. I also like that they have massive deskmats. I got a Mionix Alioth recently, and would’ve gotten the GMMK mat instead if I knew about it then (it’s cheaper)