The selling point of this keyboard is its 5G wireless and the small form factor (the size is almost identical to Keycool Mini 84 or Noppoo Choc Mini 84).
Nice things:
- 5G wireless (nano-size receiver)
- rechargeable lithium battery
- dual wireless/wired operation (the included micro usb charges the battery and you can work/play as wired)
- backlit (2 levels) for those who love backlight
- key lettering nicely visible without backlight
- small, convenient form factor
Unproven claims (as listed on Amazon):
- "Waterproof:Yes" -- personally, I don't believe it and wouldn't try it either
- "Lifecycle:60 Million Key-press" and a few lines down "Key Lifecycle:10 Million Key-press" and "Yellow mechanical key switches which can handle 60 million operations" -- which one is it? I think 20-30 mil is probably more realistic estimate
- "Material:Stainless Brushed" or "Fashionable and popular stainless steel panel" -- really not sure, but most people experience the top frame as aluminum and the rest of the keyboard case is plastic
Neutral:
- vibration feedback in the F row (touch screen)
- it takes some adjusting to the keys spacing or their shape
- an average built in terms of quality
- "Original Factory MX Yellow Switches" -- yellow Kailh switches
Negative:
- top frame with its cutouts for each key obstructs easily switching keycaps
- at least to me the aluminum (ok, stainless steel) top frame makes the keyboard look cheaper
- factory keycaps shape
- to replace keys, you need to remove the top frame (personally, I'd like to cut off everything from the center of the panel except the outside frame and frame for the touch panel)
Anyways, the most positive thing I can say about this keyboard is that maybe it will move others in the mechanical keyboard industry to start including wireless or Bluetooth. Rapoo KX is an average keyboard that's not particularly suited either for gaming or for extended typing, but it pushes some nice features (and all under US $90) that big companies must notice.
Yelow Kailh:

- Rapoo_mini_KailhYellow1.jpeg (129.9 KiB) Viewed 16102 times
Wireless ON/OFF, micro USB port for charging or wired connection:

- Rapoo_mini_KailhYellow2.jpeg (172.97 KiB) Viewed 16102 times
Top metal frame:

- Rapoo_mini_KailhYellow3.jpeg (471.29 KiB) Viewed 16102 times
With metal panel removed:

- Rapoo_mini_KailhYellow5.jpeg (261.81 KiB) Viewed 16102 times
Lights on (lower level of the 2) -- you can notice a slight imperfection by the backlight protruding between N and M:

- RapooKX_6.jpeg (223.58 KiB) Viewed 16102 times
Lights off -- key lettering nicely visible:

- RapooKX_7.jpeg (222.71 KiB) Viewed 16102 times
Edit: Note -- I haven't seen any "PG1511" markings on the switches (as in some photos posted on other sites; these are clearly marked "Kailh".