I had a VTX with a Motortrike kit. It was okay I guess. I had nothing to compare it to though. I would shop around before I bought another though.
A couple of thoughts.........
With no reverse, the Dragon trike is going to be a female dog to back up if she accidentally parks it with the nose facing downhill. I'm a decent sized guy, and my VTX 1300 trike was was a job if I parked it downhill. It doesn't take much incline to make it a 2 person job to back up.
www.triketalk.com trike forum with lots of informed riders.
Buying used might save you some grief, and spare a Dragon from being cut up.