I use it almost daily for 2 hrs+ with default sound quality, since i stream it mainly over 3g. havent ever got these issues, unless poor reception when i travel in remote areas. tried doing the same with high sound quality, doesnt stutter. With wifi, which i do very rare, it has no issues, provided not using bluetooth.

NB: If you use bluetooth and wifi, it will stutter, no matter what app u use to listen music/voice. I believe you are not mentioning this issue. and I guess this is like a basic hw issue prevalent in most devices