I've only ever owned Powerdrive motors. I had a V2 but traded it away this week, and that was before I ever used it.
It's advantages. Lighter, and MUCH smaller mounting area compared to scissor mounted trolling motors. Because it is an electric motor, you can bring the pedal anywhere in the boat. Stand in the back, and control the front motor if you want.
It's also upgradeable with Co-pilot, or I-pilot.
They are much harder to stow and deploy. The scissor mount motors are a piece of cake. Grab the rope, pull out and up.
Also, some really hate the Powerdrive pedal. I have used both, and don't have any problems with either one.
The powerdrive you tilt your foot left or right to go left or right, the cable motors you push forward/back for left/right. The reaction to steering inputs with a cable motor are instant, with a powerdrive you have to wait for the electric steering to turn the motor.
The V2's seem to have an unreliable pedal, but otherwise, like all other Powerdrive motors are pretty rock solid reliable.