it's great if you just need to hop on real quick and check email/messages/etc. obviously, for now, it can't replace a full pc or mac experience. but, i'm sure google is working on that!
i've been a chrome user for maybe a year now and there are still a few things from firefox i miss. but, overall, i like it. i love being able to sign into any chrome browser and access all my extensions, favs, etc.