I went for the Epson 3010 because it was about half the price of the Epson 5010 or Panasonic AE7000 (once you factor in glasses). As I understand it, they all use basically the same panels and have about the same brightness, so I figured the image quality would be similar.
As you mentioned, the lack of lens shift is a big drawback. My projector sits in a shelf built into the wall that can't move. I lucked out that the 3010 mostly worked, but I did have to move my screen which isn't easy since it has a frame nailed to the wall. I'm not the type that could be happy using keystone correction.
The noise from the dynamic iris is probably my biggest gripe. It sounds just like a hard drive that's not in a case. My projector is about 4 feet from my head and I'm picky about sound. When watching a movie, the noise is mostly a non-issue, but when browsing Theater View or the Internet where there's no audio, it's annoying.
As for fan noise, it's fine in eco-mode but loud (not harsh) in normal-mode. I always ran my PT-AX200U in high-power and it was about the same volume as the 3010 in eco. I think the 3010 may be a little brighter in eco than the Panny in high, so this isn't an issue.
This is my first Epson. I've had two other projectors, both Panasonics. I'm not a fan of Panasonic's mail-in-rebate to get more warranty. I also think they got a little greedy by not making a real 3010 competitor and instead only pushing the $3000 price point.