Here's my take on the subject:
I wanted to DIY build with BBHSD &/or TSDZ2 750w Mid Drive Kits. Would have built on my wife's Jamis Citizen, and I would have purchased one of these SOMA frames to built on: Wolverine, Double Cross Disc, or Riff. I also considered purchasing a Jamis Renegade to use as a base for my E-Bike.
Wife didn't want me to build her an E-Bike, until she rode an E-Bike. After some research, I found RadPower online, and found out a shop approximately 60 miles from us in Galveston Texas rented them. We went on a two hour guided tour, and the Rad's sold themselves to us. Wife was adament she wanted a Rad Mini Step-Thru like the one she rode during the tour. Purchased a Mini Step for her, and a Rover for myself.
Upon delivery, Rover box was perfect, while the Mini-Step box was completely torn down one end. The section stapled together had been pulled apart. Fearing the worst, I'm happy to report the bikes were fine, and nothing was missing.
Assembly was straight forward.
Two of the brakes needed the inner adjustment screw turned one click counter-clockwise. Rotors were good, nothing bent.
Mini gears needed attention. It wouldn't go into 1, and it would skip from 2 to 4 with one click. Both upper and lower limit screws required adjustment, as well as the derailleur.
Rover derailleur required slight attention because I could vaguely hear a tick in two of the gears.
The money we saved by buying RadPower versus DIY or store front will be spent enjoying them, and add some upgraded parts.
What I dislike about RadPower, is the price they charge for shipping accessories after the sale. We both want two front racks, two small baskets and two large platforms, but are not getting them because of the shipping cost. They want $88 to ship these items to Texas. No way in hell I'll pay that, and will do without. Oh yea, don't even think about buying a spare battery, their shipping cost for a battery is highway robbery. Shipping charges for accessories & parts is my only negative. I'll purchase a different brand battery with matching spare for my Rover, and the current Rover battery will become my wife's spare.
Would I buy these Rad bikes again? Yes, for the most part they are great!!!