Yeah, I figured it was just a mis-read. I mean, when this old dog sees "Accel" I normally think of coils and wires and modules and anything else to do with stupid-fucking-trons.
But for the OP, if you do get one, let us know how it works out, will you? The concept, (as far as the advertising claims) looks appealing, but like you, I'd like to hear some real-world experiences.
One other thing to maybe consider though, is how servicable is the system? I mean, if you have say, a PC-V, and you start having problems a long way from home, you could probably find any good shop, relatively local, that could help you out. Any local shop that has a Dyno is going to know how to diagnose a PC, but they might come up scratching with the Accel unit.