I have been using the B830 keyboard for more than a year, I took this one to work. For that one, except for the year, the keys began to knock a little louder, so I donโt expect any problems from this one either. Their actuation mechanism is optical, there seems to be nothing to break there. Pros below: key mechanics work great customizable backlight all keys in standard places, no perversions, add. functions on Fn are painted on again there is an additional block of keys (numeric keypad) unsinkable Has cons: quite loud, because mechanical I did not like any of the default backlight modes