My room is 15' x 25'. My 7.1 system speakers are all floor standing of one sort or another. My ceiling is plaster, but it is the first floor with a second floor above. I will be adding 4 height channels. The Atmos discussions I have seen show in ceiling speakers just in front of and just behind the main listening position or angled speakers mounted on the top of the mains. Towards that end I have ordered 4 in ceiling speakers. However as I re-evaluate the level of difficulty installing said speakers and their requisite wiring, I take pause. I have in hand 4 KEF 101.2 Reference box speakers, which, I believe could be mounted in the 4 corners of the room with less aggravation, wiring wise. As far as electronics driving these 4 channels; Marantz AV7704 11.2 Sound Processor Sherbourn 5/1500A Five channel 200 watt power amp. One channel unused. The questions is, "Will Atmos work well with corner placed speakers?" Does anyone have experience with this?