No, no root here.
I use the touch screen controls.
They aren't really that bad but, using a Bluetooth controller would be awesome.
Why have you never played it?
I got up to rank 15 on it, then again I am on a boat at work...Lol, we get 12 hours a day no matter if we work one, we didn't work for 4 days so I have plenty of time to play it.
Whoa!!! I can see your power level with my google glasses!!! ;D