It works great on PowerPro - and this is from experience, not "hype". I've used it on all my lines (P-Line, Trilene, PowerrPro) with positive results (smoother casts, less line memory, etc).
Be sure to shake it up well before use, and coat your line with it at least 24 hours before the first use. Then you can spray it on during use thereafter.
KVD Line and Lure will give you a 100% refund if you're not satisfied. But please, if you do have a problem with it, please send in the line that's having the issue. It will help them determine what the problem is.