As soon as Ubuntu 14.04 came out, I wanted to get the upgrade. And the other weekend I did. This meant a bit of instability on the first few boots, but it went away. One thing I didn't check on, which I should have is the status of my Software RAID. It seems after the upgrade it went out of sync, and I didn't give it time to sync up. So yesterday, I ran an update, and accidentally thought of checking my Disk status. And that's why the system was bit hung.
My desktop is a bit of a mix. I use GNOME, and KDE, my wife uses GNOME. This sometimes causes conflicts, on my desktop. I am hoping to clear those up. For example, I can't properly run a distro upgrade from KDE, I had to login it GNOME, where I was able to upgrade my system, not sure why, but it worked this way. Is upgrading worth it, so far I haven't seen the benefits, except that digiKam is the upgraded version, which I am happy for.