I bought this keyboard as a "better" alternative to the A4tech G100, where the space bar started to go. Plus, I was impressed that it's backlit, which is always handy. Primarily I use it to play space simulators, where I have a half-keyboard placed next to the Hotas (the normal one doesn't logically fit) This purchase has a few major "buts" that made me return the Thor and humbly go back to the A4tech.
To briefly summarize and conclude:
1) Even though the keyboard is described in the description as a membrane, it is a pure Red Switch mechanics. Translated into English it is quite noisy, which for some (me) can be quite a problem
2) Unlike the G100, it is really a "half-keyboard", i.e. If you were to keyboard fiddle behind the F5/6/T/G/B column of keys, that's the result. The G100 is a bit of a travesty in this respect, and it has differently arranged keys - but thanks to this, the G100 has managed to cram quite a few keys into a small footprint, and they are arranged in a somewhat game-like way (see WSAD), including a full row of numeric keys above the letters and especially in the cradles the F1-F12 keys, plus a volume control (which admittedly doesn't bother me much). For simulators and some RPGs, a similar key combination is quite useful. However, I thought I would compensate for this shortcoming by mapping the necessary buttons to the 4 action buttons that the Thor 100 contains.
3) Backlight adjustment is also possible outside of SW, although only to a limited extent. However, I would probably be fine with that, there was no problem here (I use a monochrome backlight anyway without any disco).
4) But what you need to have the software installed for is the mapping of the action buttons. And here is the stumbling block. Actually, it starts off nicely - the software is about 6 MB when downloaded, small, relatively functional and installs without any problems. Beautiful. Until you find that, for example, the main keyboard is somehow delayed in responding. Or it starts to react differently than before, a typical example is when you want to scroll through files with the arrow keys in Total Commander - when you press the down arrow, there is always a "mini-pause" after the first jump. After installing this program, the minipause turns into maxipause, where it is very unintuitive and inconvenient (it works on other keys as well). The action keys (mapped) also work rather pofidely (sometimes yes, sometimes no, sometimes it sort of "jams" and then types a few characters in a row). Btw, I tried on two other PCs and the same result. Based on the above, the conclusion is simple - if you don't need action buttons and some detailed colour settings, go for it - the Thor 100 is a solid piece of HW for gamers. But if you want to have SW installed, I recommend you consider it, because it can do quite wonders to your main keyboard. In the meantime, I humbly return to the historically proven G100, which is not backlit, you have to adjust it a bit (the newly bought version wobbles slightly on the table, just a bit of tinkering with electrician's tape and solved), but it works reliably and for quite a long time (the previous keyboard lasted me about 8 years).