How lit is lit?
You don't want to be watching it in a completely dark room. Blacks might be good compared to other modern plasmas, but they will regress into grey if you have no ambient light at all.
I'm have 8w of LED bias lighting (equivalent to ~60w incandescent) behind my 50UT50, and I can still easily distinguish letterboxing from the bezel, but I can also see some very faint reflections occasionally, so I'm not going to try anything brighter. That puts this TV in an unfortunate situation, and is probably reason to get one of the louver filter models.