We rented one on a family trip recently and I thought it was fun to drive. The mileage didn't seem great though for how small it is.
We also only plugged it in once, and even that was just because I was really curious about it. I was obviously the first one to ever take the cord out of its pouch in the back. It was still zip tied and such. I think we got about 25 miles out of the battery before the engine kicked on.
Overall, it was a pretty fun vehicle.