The app is a bit clunky though.
He lured me into buying an annual subscription with the promise that he would convert it to a lifetime subscription (which was available at some point). So I bough the annual subscription and from that moment I never had any more replies from him...
I sent a dummy question from another email address to see if he was simply ignoring me and I received a reply immediately.
So I downloaded the music I liked there (it's almost always repeating anyway), using a video/music grabber, and then cancelled my account.