I like it, and it's probably something I should consider for my 750A. They are relatively bullet proof. They don't launch hard due to limitations in the torque (that's what is under the big round cover on the right side) converter, but they are dealy consistant. Chad Isely just won the NHRA division 3 bracket finals bike class with his 77 'matic. He was running in the 13's, while his final round opponent was in the 9's.
Yes they are somewhat rare, being built for only 3 years.