I run Xubuntu 14.04 here and it's been great. I thought it was a worthy upgrade to 12.04. Also I just put it on a friend's new Lenovo (dual boot) at his request

I run Xubuntu 14.04 here and it's been great. I thought it was a worthy upgrade to 12.04. Also I just put it on a friend's new Lenovo (dual boot) at his request and he is enjoying it, having only used Windows before. So I kind of get the feeling that OP has at least a few very particular system-specific or setup-specific things (I don't even use bluetooth, let alone on multiple systems) going on that aren't affecting everybody. Could be wrong. My main machine has been a Macbook Pro for the last 4 years, and as long as I don't need to be using Photoshop or Coda, I'd rather be using Xubuntu on a system with even half the specs.