Disadvantages is that at least for last year there wasn't a native IDE for ChromeBook, all you got was an online text editor and I believe that you could not do any compiling for code that needed or in my case I could not compile stylus 'cause of the lack of node or external software to do it. So only normal html, css and javascript in my case which sucks. Also I use a lot Photoshop and Illustrator with full capacities which is not supported so that's a big no for me, although I'm actually looking forward to use a Chromebook at least for mortal/muggle use //facebook, netflix, twitter, mail, etc