The BPE is a decent jig. It's even got a couple extra settings for fletching orientation that the Bitz doesn't have. However, it's not as precise and repeatable as the Bitz and the magnet isn't half as strong as the one on the Bitz. You've got to be on your toes with the BPE or things won't turn out the way you want.

Bitzenberger is the best. Period.