I've got the GPD Win 2 and it really would be the perfect little computer if it had HP 100LX style calculator keys. I know people disagree with me on this, but it's the one style of tiny keyboard that I have been able to achieve a relatively fast typing speed with.
I like the form factor. There's a couple quirks with the screen and some apps/games but I can work around those. The real thing that keeps me from using it more is the heat/fan noise.
I can't use it anywhere quiet because of the whizzing sound it generates even just at idle, let alone when I do something. With games on the go it's not a problem, but any kind of productivity work like editing code isn't possible.
I saw there were some mods for cooling but I don't believe they're available anymore. Best I've been able to do is under-volt it to lower CPU performance, but that only gets me so far. I'm open to suggestions, though!