I have a Rover step thru; purchased it about 4-months ago. My bike did not seem to have enough power to do steep hills so RAD sent me a new controller and video instructions to install it. One small issue was that the instructions were for the non-step thru Rover, but the main problem I encountered was that the a plug I was supposed to pull out of the frame to mate to the new controller would not pull out. There was some tape or something else around it that held it in.
Rad was very helpful. They arranged for a no-cost repair, and when the local bike shop doing the work reported that the control cable plug was in bad shape they send a new controlled cable, all at no charge.
I have not checked out yet whether the new controller fixed the hill climb problem, but RAD really came through when needed. Great company!

I have a Rad Rover drop frame, am 5'9" tall, and have difficulty getting on and off the seat because my legs are too short.
The solution was an inexpensive seat post that can be adjusted up or down while riding. It goes down over 6" with a push of a button, which enables me to get on and off easily.
I attached a picture of what I purchased on Amazon.