Unacceptable App with 0 quality control

it control the pulse fine
but very buggy user interface for the playlist, after adding song(s), the player gets stuck on a frame that stretches across 3 screens, from left to right this frame contains 1. the current playing song, 2. the playlist, 3. the category list
and u can slide them from left to right but tapping on items basically does nothing! this means u can not play, add/choose songs, etc

and if you keep messing at that page the iPhone will eventually hang and u will need a hard reboot!

I mean how did this app ends up in the App Store?!

raymonium about JBL Music, v2.2