I purchased a 50PZ800U and a TV stand from Mountavision.
At the end of my experience, I have nothing but kind words for Chris and Mountavision. Chris is extremely honest, fair, straightforward, generous and communicative.
It is worth sharing a brief anecdote. During my buying experience, something entirely out of Chris' hands (i.e. not at all his fault) went slightly off-the-rails -- there was a delay in shipping my TV stand. During this very slight hiccup, Chris stayed in constant communication. Every single one of my inquiries was responded to promptly and in detail. And Chris went the extra mile to make sure that I had a positive experience.
I'm happy with the display, happy with the stand, and very happy with my buying experience. Thanks Chris!