I have never seen a Bazzaz fail, and love the way they work. If your a street guy, maybe PC since its got some pre-loaded maps, altho you never know the temp or altitude of those tunes so they may be waaaayy off for your bike, same mods. Also why Bazzaz does not offer pre-loaded maps aside from a standard slip on map. If it was me, and I wanted it done right, Bazzaz is a clear choice for the win in my book. I have seen between 10-15 Power Commanders fail in my 8 years. I like the programming and the performance of the Bazzaz. And I have raced both set ups and the Quickshifter on the Bazzaz is NIGHT AND DAY better than PC. MY Opinion!