We use the Schoff power push (attached to MLG and turns it with friction rollers)at my airline for A320 and B737 with a one man push back. It has been good the last 10 years with a fifty percent drop in nose gear damage and maint problems. All out push backs have at least 1 90 deg turn and some have up to three to get out of an alleyway.
Our engineers love it as they only have to disconnect the headset, as the tug has an auto disconnect function that allows the aircraft to just drive away from the tug.
Flight Crew love it because it is very smooth in operation, and the disconnect is very fast so limited time waiting for all the grount crew.