Well, I got my screen and the 5030ub. My throw distance is 16'9", the screen is 110" 1.3 gain non-AT. My room is dark brown with controlled lighting. I upgraded the firmware to V111. I was prepared to be blown away...and I have to say that I wasn't.
I see the screen door effect, and I can't get it out of my head now. The gaming lag is an issue on fine mode, it goes away in fast mode, but I don't like the picture quality reduction. The fan is loud on bright mode and 3D, but not on eco. -Here's an interesting thing I read in the owner's forum: It appears the fan speed is increased when the PJ is ceiling mounted (inverted picture). I see yours is shelf mounted, and maybe that's the only way to go to be able use it in bright or 3D without being distracted by the fan, because let me tell you, I don't know how anybody could say it isn't loud. I'm going to experiment with mine to see if there is a difference, but I bet there is.
I also think it's just difficult to get a good looking picture across HDTV, games, and blu-rays without tinkering around with the settings constantly. My auto iris doesn't seem to have any effect on the picture and just makes noise. Again, I'm going to try this non-inverted and see if anything changes.
Also in the meantime, I'm expecting to receive a Sony HW40ES tomorrow. I've got to be able to see the difference between these two projectors firsthand because I thought the Epson was a clear winner for me, and now I'm really unsure.
So, I'm frustrated with my Epson for now - but I've got some experimenting to do...