I just started using (and selling) Power Pro - So I guess that makes me "Pro-Power Pro"
I like it, but to each his own. The Power Pro website lists some tips that are very helpful.
http://www.powerpro.com/advantage/using.asp
I also listed some tips for using it.
http://surfcasting-rhodeisland.com/StoreImages/Tips.htm
With spinning, they suggest you close the bail manually (unless you using VS, which has no bail, of course) and pull the line tight before the retrieve, I guess the stuff can get loose after the cast and then you wind in the line over the loose wraps - this leads to the bird's nest problems.
Still, it is very popular and selling well locally. I think a big part of the problem is that the kids behind many counters just spool it and ring it up without a word of advice.