What can I say, been testing it for a few days with no problems. I'm surprised how fast it is compared to some of the other flavours.
I always use Xubuntu when the normal desktop variants are too borked during the development cycle, right now I run Xubuntu on two machines. One with all the extra Gnome3 PPA:s and one with official repos. Actually the one with the Gnome3 ppa:s feel more slick even though it's a way lesser machine
A lot of things where borked recently, one of the more eventful development cycles lately, still I am able to keep one box running as a server and I am building software on booth(Android stuff)!
Been running well with 3.14rc2...actually it's been 100% smooth for the entire cycle...
cheap hardware....LOTS of it
I've been running Xubuntu 14.04 for a few days now and haven't had big issues (I couldn't install my printer, but Sammiev fixed my problem).
I don't like how the "Don't ask for a password on login" works though.