Ok this review is going to be a bit odd.
I ordered, it arrived, set it up, used it once, then it broke.
There are large snap rings holding the motor/bearing portion in the center of the wheel. When I used it to move my trailer out, it worked fine. When I went to put the trailer away, I heard a loud CLICK and then it sounded like grinding metal. I inspected and found that the snap ring was popped out of its groove, and the whole motor/bearing portion was no longer centered in the tire, and it was grinding metal on metal against the channel where the wheel sits. I’m a very capable mechanic but without disassembling the whole wheel/motor, there is no access to reinstall the snap ring. I contacted customer service and asked them to send a new unit and I would send the old one back. They offered me a $20 refund. I told them this was unacceptable. They offered a $30 refund. Again, I told them this was unacceptable. It took a full week of back and forth before they finally agreed to send a replacement unit. Now, the second one arrived and I made sure the snap ring was fully engaged in its groove. I’ve used it 5-6 times with no issues.
The dolly actually works great, makes it super easy to move my trailer around the driveway. I have a 20ft auto trailer, dual axle, and you have to turn it a full 90* to get it into its parking space. It would take 2-3 people pushing to get this task done, and it was always a chore. Now with the electric dolly, one person can do the job without breaking a sweat. I love this dolly and wish I had known about it years ago.