It's actually pretty well done, I used to use it til I moved to ownCloud. Interestingly it's more stable than the official client on my Mac, on Ubuntu 12.04
It's nice that there's a third party option (yay for open APIs) but it's pretty weird that Google still hasn't bothered to make a Linux Drive client themselves. This is basically the only reason I'm still using Dropbox primarily, though I'll probably start moving some files to Drive when the bonus space I got from their college competition thing expires.
