So far its working out pretty well over ARC. Now its lossy so it only supports regular old DTS and Dolby Plus. This model also has something of a bad rap for turning off on its own but its only happened to me twice in isolated cases and both instances involved playing streaming content. Its been fine with my Samsung UBDm7500 and DirecTV. Anybody else have opinions on this model? Edit: Sorry about the title, its a SB3651-E6.