Personally, I think they're unusable. The keyboard is absolutely tiny - hugely frustrating to type on - the keyboard and palmrest area can get very hot (poor heat disapation), CPU is woeful, SSD is slow, and the screen is titchy.
Buy it by all means if you need an cheap portable internet browser, but it will make you want to tear your hair out if you want to use in the way that you would a normal notebook. They've also been discontinued by Dell (probably because they're not very good).
