DO NOT BUY THIS UNIT IF YOU WANT TO USE AS HOME THEATER!
Pros: Great Sound quality. worked well without a sub in my 13'x19' room, even better when I used my wired subwoofer. Cons: horrible audio video sync problems, remote not great, mediocre app experience. not really any indicator if you adjust the volume on the unit.
Worked great for a week then it developed some really bad audio sync issues with my Samsung QN56Q80raf TV. The made the unit completely unusable. lip sync adjustments didn't do anything and the problems would come back after a minute and gradually get worse the longer you let the source play. This happens when using ARC or not. I had several sources plugged directly into the soundbar and it had this problem. Support had some suggestions, but ultimately couldn't fix the problem.