This extra flat keyboard looks like a laptop keyboard type "chicklet". Very comfortable to use, the keys respond well, and typing is pleasantly quiet compared to conventional keyboards.
I type fairly quickly, but I'm not typing .. I have not noticed Keylock as another commentator: they seem to respond well and back up quickly. But maybe I did not tape fast enough to record the phenomenon (?).
I like the USB port on the keyboard side: very convenient to connect a mouse or USB key! I wonder why there are none on all wired keyboards: there quickly get.
The current price of thirty euros seems quite right for the services.
Erwann on Amazon.com