Well.. honestly, I thought it was eggshell-white-interior-semi-gloss.. I would even go so far as to say Glidden paint.. but maybe I'm mistaken.. ;-)
..but, I *know* it said eggshell on the can.. er.. I think it did anyway.. (I can check later - its been YEARS since I painted that wall white) It was originally some horrid cream color.
I didn't notice any hotspotting on the white wall..
The wall has a little texturing to it, but not alot.. its almost like a super subdued version of ceiling popcorn.. but thats not from the roller so mucg as whatever is under the multiple layers of paint.. I'd say the roller texture was 'very smooth.'
The quality of the picture (IMHO) is vastly improved with the DW. I was watching an episode of Future Car on Discovery when I had the laminate taped on the wall for a side by side comparison and it was incredible how much more smooth, glossy and shiny the paint looked on the cars on the DW side of the screen.
I only wish I had a good digicam.. and the foresight to have taken some pics to show..
Also, the difference in gain between the painted wall and the DW was VERY noticeable. the DW, even with the PJ in ECO mode, has a brighter and more color rich picture than projecting on just the painted wall (with ECO mode turned off). I hope that makes sense.
Don't get me wrong, I liked the picture quality I had on the white painted wall, but I had decided I wanted to paint the wall a dark color ( Behr or Glidden "Deep Space" - a very uber-super-dark blue) and I liked what I had seen/read about the DW screen.
I love my new DW screen.