Watched this (Equilibrium) last night and I'd say it's well worth the $13. It's a hard one to judge given that I haven't seen the other Blu-rays. In some ways the PQ and AQ exceeded my expectations, but in others I found it a tiny bit disappointing. Some focus issues, weak special effects, and bad makeup made it a challenge to isolate any cases of filtering. I guess that says something in itself, in that the source material is transferred well enough to spot those issues and that they haven't been covered up with filtering. Grain was almost always visible (good!). I'm no expert, but every flaw I was able to spot can be attributed to the original filming. It's possible that some very minor softness might be alleviated by a higher bit rate, but I don't have the JP to compare in motion side by side.
The audio was just fine, dialog was clear, gunfire carried varying degrees of LFE weight, I don't have any complaints that I can attribute to the DTSHDMA track. The only problems stem back to the original recording, SFX selection, and editing choices and aren't technically relevant to this disc. Also, it's stupid that the box says "DTS 5.1" on the back even though it is lossless DTSHDMA 5.1 in reality.