I wanted to try one "just because".. I bought a 525 road demon and haven't had any problems at all with it. Ran great straight out of the box. Car starts in what feels like a half rotation of the motor and I can't find anything to complain about! Sorry to see them go!
Eventually I hope to install the Shelby Ram Box and use 2 of those FAST F.I. systems (or equivalent) ....