As for the keyboard at a time, after long hesitation I had opted for the K750 (solar and extra flat, very design). But K800, what it gains in overweight (relative) is compensated by the function keys backlit (it is a choice to do ...).
Without that, hits very nice, quiet, real-time response, clean and streamlined design, and all done very well on a desk.
All I use to office and incidentally the game, when I plug in a sallow gamer mouse.
Note that all connects to the same micro dongle (single receiver micro "key" USB), very convenient.
I adore.
