I still have my denon PLIIZ, ( in my closet) but not in my system! Even as a child I was trying to make my own immersive audio system, I added extra speakers to the TV, once I removed the TV speakers from the tv, and placed them in boxes on each side of the television! When PLIIZ was introduced, I jumped on the bandwagon and hopped back off (I was not satisfied) it added some spaciousness, but it wasn't worth the time, or money for me! I had much more immersive experience with legacy DVDS using elevated surround speakers. ATMOS IS NIGHT AND DAY DIFFERENCE ( when the sound engineer is experienced) I do enjoy hearing the directional overhead audio as much as the next guy, but it's more than just overhead noise! The speakers in my room seem to disappear, sound becomes a part of the room. Watch the DVD " The Cave " on your setup, then watch it on an Atmos system, you will understand exactly what I've been trying to say!!!!!