Torvalds called the Unity interface a 'hot mess' and he was being kind. I ended up needed to reinstall my OS and thought it would be a good time to get the current version. Wow, what a mistake.
After about a month, and trying the Unity interface under Ubuntu and OpenSUse, I have given up on it. Not only is it clunky, but it is amazingly slow in every day to day operation. There is only one aspect of Unity that is fast. If you move your mouse cursor to the top left, it will bring up a tile of each window. Now you get to pick the window you want. About 99% of the time, it is the window I just left. My browser. It has a 'BACK" button about three millimeters away from the corner. I happen to hit it about 20% of the time. It is just another time waster.
No compositing. Strange graphic anomolies. Periodic, long lasting surges in disk activity that leaves you either loading up the buffer with mouse moves, clicks and keystrokes that are certain to make everything 15 times worse. Unless you are different than me, you just hit your reset button or risk forgetting what you were trying to do in the first place by the time the computer is operational again.
This exact same system, with absolutely no changes, runs 10.04 like a dream. That's what I had before, and that's what I have now.
Unless these morons admit they made a mistake and throw this crap out, I won't ever see that useless interface again.
I thought Mint would be the answer, but I don't think the install ever completed. I'm not really a KDE person anymore, anyway.
OpenSUsE unfortunately had some tricky engineers that believed everyone else would fall in love with the evolutionary Unity interface. It sucks as bad there as on Ubuntu.