Well worth the purchase! Bright future ahead!

Update Mar192016: this app continues to deliver smooth performance and a user-friendly interface. Updates focus on performance and stability, not bells & whistles. I havent used Apples iOS player once since getting Cesium. I enthusiastically recommend this to friends.
Suggestions: song position and time remaining readouts (minutes:seconds) to the left and right of the position "wheel", which would also benefit from more contrasting shades of gray.
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Finally, I can play music on my portables again without Apples terrible user interface since iOS 8.4!
My complaints are minor, but constructive (this apps moving in the right direction already anyway). Startup is a bit sluggish, audio scrubbing needs a larger, more visible control , as well as wider variable rate (so I can zero in on finer points along the track, but that may be an Apple issue, since they introduced this problem with their current streaming paywall design).
This app quickly replaced Apples music player app in my iOS dock. Im expecting more improvements, but Im already happy with my purchase. Thanks for putting the effort into this project!

MyNameIsPrints about Cs Music Pro, v3.4.1