Hello!
So far, 2.0 has been working pretty well for me, also. The only challenge has been getting Bluetooth to work consistently.
Bluetooth seems to be broken in all the Ubuntu 14.04 versions, but the tricks required to get it going are different from adapter to adapter, and from machine to machine. This makes it nearly impossible to establish some kind of standardized method for getting it to work. I hope the Launchpad guys work it out soon...
73 DE N4RPS
Rob