I looked at a Revival last year, and would've bought it if I'd've had the funds... but...
It's definitely a good looking bike. Electric or kick start, big tires, disc brakes...
The gas tank is not actually a gas tank. It contains the battery on the right side, and is empty on the left side, and it's made of plastic. The real gas tank is actually located under the seat.
There is not yet a source of aftermarket parts for the Revival (unless you have something custom made), and I think it tops out at around 32mph right now.
Lots of plastic. If you can keep it inside and avoid wrecking it, and you don't mind the top speed, you'll be ok. Otherwise, I'd go for another model Tomos, or another older, more established bike... If you find something you like, ask around here and see what kind of feedback you get.
Or, go for a scooter, preferably a Japanese model. You can always get parts for them, and they tend to be faster than most mopeds. (Anyone want to flame me? I'll meet you at the race track!)