I had a used rear tine Troy Bilt. Used it one year and sold it. The saying of "one handed operation" is funny to say the least. Try to turn one around. Without a differential, it will want to continue forward fighting you the whole way as you WORK to turn it.
The shape of the tines on a front tine tiller makes a big difference as to how much it will or will not "jump around" in hard tilling. I have a front tine Ariens 30 years old and it has curved tines and is fairly easy to handle compared to most other front tine brands. The tine curvature makes for a more gentle soil entry. By curvature, I mean they are "swept back" when you look at them from the side. Most other brands have tines that come straight out from the rotation axle.