The other problem with ChromesOS is that it's a gigantic privacy sinkhole.
Everything you do in the OS is tracked and recorded by Google. Even printing to your desktop printer. None of this tracking is anonymous either since you must sign in with your Google account to properly use ChromeOS. (Just a reminder that a Google account equals your name, gender, email, date-of-birth, location and mobile phone number).
Google fail to state in their lengthy privacy policy how long they keep your data (presumably forever) or whether your activity is disassociated from your identity when viewed by Google. In my view, this is simply unacceptable when you consider the gargantuan volumes of private date collected and the unprecedented degree of tracking.
The reaction on this site to an entire OS that tracks you by default has mostly been: "Yeah, you're being tracked. So what? Get over it." Presumably everyone happy to recommend ChromeOS would be equally happy to switch on their Mac/Windows/Ubuntu machine and have it track everything they do, have that information sent back to the OS manufacturer, and for none of that data to be anonymous?