I wanted a keyboard in order to put it on my knees, move. And I chose this microsoft arc, and it is perfect! Lightweight, good build quality, very silent keys, reactive ... Only two slightly negative points: - A little too much space bar, but hey you get used - Arrow directional combined into one: it is rather accurate, but why not put the usual arrows? After, except if you want to play games with, you do not mind, and that's accurate, you get used to. Clearly, this is a great keyboard, which looks like no, and super convenient!