Sony Qualia 004 projector-How well does it work?

I would wait.
It's a first generation.
Was going to purchase it myself until I found out that the SECOND generation is gonna be offered soon as regular XBR 60" sets for around 4K.
Even the Sony Tech guy I know things the projector is a little "buggy".

Sony's web site shows the KDS-R60XBR1 that uses their SXRD technology with amazing native resolution for a list price of $5K. It's listed as a new product, but presumably available now -- I didn't try to order it online. I too have been impressed by the picture quality of the 70" Qualia rear projection unit our local dealer displays, but its $13K price put me off.

db

For a less expensive alternative, check out Sony's new Ruby.