I have the unit over one year had 2 DAP's before and I'm very happy with it in all aspects.
Sound wise it depence on the quality of recording.This player is honest does not hide anything if the recording is bad or low quality you can hear it! If the recording is good the player has a very balanced image. Highs are clean and smooth, middle have structure and sound jut right and the bass is fast ,tight and clean.For the money you pay it's a great player.
Service on line is quick to response ,System up-grate can be done on line and is easy.