I been running Ubuntu-Gnome 14.04 for about two weeks now and I really enjoy it and find it easy to use. I switched from the unity desktop because of crashes and errors I was getting. I had been getting crash alerts since running 13.04 unity when I first logged in after a reboot. I had been sending crash reports to Ubuntu/launchpad but finally got fed up enough that I put a fresh (erase partition and use fresh install from live cd). I have always liked the unity interface and the use of the meta/windows key to launch applications. This feels faster because my hands stay on the keyboard and I am not reaching for the mouse to access menus or a dock.
I also tried Debian Jessie and Wheezy with gnome desktop. Debian felt really fast and snappy. Debian was definately harder to setup because I had to enable the non-free (propriety) software for my hardware to work (AMD R-9 270 graphics card). I did not stick with Debian because it would not boot after a software update. I definately want to try Debian-testing again after I get hardware that is more compatible and all my hardware purchases in the future will focus on stability and compatibility with linux in the future. I have Debian Jessie installation on a spare hard drive that I use for recovery purpose and as an emergency working system that does not look as pretty but it gets the job done.
Eventually I installed Ubuntu Gnome 14.04 and installed /root and /home on LUKS encrypted partitions. I will probably run this until version 15.04 comes out. I have heard Ubuntu is shifting its graphics from wayland to mir display server. If they go mir, then I will probably wait a year to for them to get the bugs worked out before I try it.