So I've had the RFM01 for a while now as well.
switches are pretty ghetto imo, basically a nipple on the underside of a dome that presses into some sort of contact plate that presses against the pcb to activate the click.
How are they ghetto? A single dome provides tactility and the metal plate with relief cuts lowers towards the pcb for a change in capacity. It's a cool way to produce the desired effect with such a short travel distance. They could build a low profile Topre keyboard with these
Compared to my Zowie FK1 it feels really well built and the more silent click is unusual but kind of cool. So far great for office and gaming use. I managed to press my mouse button without intending to, which is probably down to the way I used to rest my hand on the Zowie. I feel like I need to use it a lot more to reach some conclusion. The glide feet are on the small side, I guess.
Also didn't even bother to install the software yet, dpi button on the top, usb rate selector on the bottom, logo light off on mine.
The sides are rubberized, which is a bit of a red flag in terms of longevity, usually. Can't tell what plastic the shell is made of.
Is it worth the price and proxy shipping? ....eeeh, difficult sell. I'll probably still recommend a Zowie if someone asked me for a mouse. Then again everything Topre is rather on the expensive side and offers its very own feeling you don't quite get anywhere else.