I literally tried at least 20 different iOS music player apps in an attempt to find one that would do everything I needed, which is:
1. Connect to and download from Dropbox, OneDrive, Google Drive, etc.
2. Connect to my iTunes music if I choose to.
3. Dont force me to connect to some cloud music service, and force me to see pages and pages of songs that Im not interested in every time I open the app.
4. Allow variable playback speed (great for speeding up lectures).
5. Provide "skip" buttons to quickly jump backwards or forward.
6. Remember the exact playback position for each track (again, this is a must-have for listening to multiple long lectures).
7. Create playlists for any combination of my files.
8. Provide a sleep timer for automatic shutoff.
Evermusic Pro is the ONLY app I found that does ALL this, and much more. The instant I saw it and connected my cloud audio files to it, I knew this was what I had been looking for. It has been beautifully designed, and receives frequent updates, which gives me confidence that it will continue to be improved as iOS evolves. I also contacted the developer with a question, and was pleasantly surprised to receive a very prompt and helpful response.
My only suggestion would be to provide an option which would allow us to toggle the Playlist page between the "album" view (which the app currently uses), or switch to a "list" view instead. I personally prefer a list view, because I create tons of playlists, and the album view takes up so much space on the screen that it feels more cumbersome to try and quickly find the playlist Im looking for. Other than that, the app is perfect for me.
I highly recommend Evermusic Pro to everyone!