can you give it a tier rating based on what youve seen?
Nope. Don't like pigeon-holing something as complex as a digital film transfer/encode with an arbitrary numerical value. I didn't do it in over seven years of writing reviews, and I don't like it now.
I'll tell you this much, though. The lighting and exposure is reminiscent of a 16mm indie production. Often dark and underexposed, there is a LOT of film grain. Even a codec as capable as VC-1 breaks down in some shots. I can't imagine what this would have looked like with MPEG-2.
This is a disc that is clearly one for fans of the film, not the technology.