I am revisiting my initial review on this title. I have the 2 disc version of 3D and I am reviewing the Blu-ray Atmos.
I have made significant upgrades to my system in the last year:
Identical drivers in the main 5 channels.
Separate amplifiers for each channel including one for the 4 Atmos. This allowed me to significantly increase volume of the Atmos speakers.
A subwoofer in each corner (5.4.4)
I also received recommendations from forum members on the frequencies reproduced by the Atmos speakers (thank you)
I experimented and discovered that my previous high crossover point was reducing some percussive effects from the Atmos speakers.
The additional subwoofers in the rear of the room really make a difference. They seem to accentuate sound coming from the rear Atmos speakers.
The final change I made was to pick a day when no one was around so I could "pump up the volume"
This made a huge difference as well. I think you really need the onslaught of sound pressure to make this release work.
Final thoughts...changing vote from 7 to a 9.