Hmm. Everyone's ears are different, but personally I found the APM to be significantly better than the APPs. Significantly. That was just a brief in store demo, but enough to convince me. I'd quite like the APMs, but the price puts me off, as does the lack of ability to play just using a lead as a pass-though, with no battery use involved. for the money, I'd rather buy a set of quality wired headphones really, because you can get some fantastic wired headphones for that sort of money, that are even better.