I have not seen any setup at any store with Dolby ATMOS yet, so no idea how it sounds with ceiling reflection of the sound. I have some reviews of the people who who Denon receivers and they were quite happy. Last night we watched "Transformers - Age of Extinction" on Blue-ray. this move is in Dolby ATMOS. SInce I don't have ATMOS receiver so it played this movie in DTS-TrueHD.
Panasonic TH-50PX77U, Pioneer vsx-1326, PS3, Cisco 9865, Harmony Ultimate