I just the edge evolution about 2 weeks ago, for the most part I am happy with it. It is a piece of cake to to connect and modify the factory mapping, it just takes about 5 minutes to do it. I have tried all three settings and like the extreme setting the best(lots of smoke), however I got 450mpt, normally I got 550mpt.
If I was to do it again I think I would go for a power module that was harder to install, but could be adjusted on the fly. It would be nice to switch from mild to wild in a flip of a switch.