Actually did a bit of research on the Chrome OS and that chromebook in particular. It's a nice setup if it meets your needs, which will have to be Chrome and very little besides that.
What I honestly liked about it was the security of it, 128bit encyption for all your data, the main partition of the OS is not encypted and to my understanding it has two identical partitions and checks against eachother for tampering. Updates are done regularly to patch the OS for security holes and fixes, etc and all the other neat little tricks chrome OS has for security (lots of sandboxing, etc)
Hardware wise, lets be honest it's a striped down OS running what is basically tablet specs with a SSD. Which is more than capable these days especially when the company only makes a few products and has the OS tailored for it.
Biggest gripe I have with the thing is you can't do much outside of chrome. For me I would be using it for school in which I probably end up using Google Docs (fortunately they can offline edit now, took them long enough to implement it, large oversight in my opinion). And internet, this is the part where I think the Chromebook fails spectacularly since it is purposed built to pretty much do everything in chrome online and it doesn't even support Java. May not sound like that big of a deal for some of you but for students who use things such as Blackboard for assignments which requires Java this is the deal breaker.I know it is for me, I practically had cash in hand telling Google to take my money till I found that out.
(I know there are ways to get Java to work but to be honest, I don't want to jump through 50 billion hoops just to get something to work that should take a minute or two to download and instal on any other OS)