Back in April, I've already reviewed (the then-current version of) It's Playing, a third-party multimedia player for iOS.
Back then (and in my forum posts and other articles – see e.g. THIS - in the meantime), I couldn't really recommend it. Nevertheless, in the last 1.5 months, as I've, generally, found the runtime features they offer unique and worth trying to fix, I've been closely working with the developers of It's Playing to make it as good as possible.