Hi from the occasional lurker - since no one is responding to this thread I suppose I'll finally sign up...
I have the LG AF115 with about 300 hours on it. I picked it up in Akihabra Japan a little over a 1.5 years ago for 410,000 yen which was I think like $3500 back then and lugged it back over here... and it replaced my Epson which was a 720p projector. I basically bought the AF115 because at the time I really wanted a Sony VW or JVC DILA but couldn't afford it, stumbled across this in Japan and couldn't pass up a deal.
The colors, contrast, and general movie use is a little better than my old Epson with my 120" screen, but if you're expecting a huge difference over a 720p 3LCD projector it's only marginally better in your ~100" size. Actually in 100" I'd say just get a cheaper 720P unit if you're on a budget - however if you are set on 1080P the AF115 is a good choice - I don't think you can go wrong. Also if you're gaming I think it's better for games I play PS3 on it occasionally and it's definitely feels sharper than my old Epson.
As for how "awesome" the SXRD is, I actually took it over to my cousins a few months back who has a custom 244" screen and at ~200"+ (we couldn't get the whole 244" w/o mounting it) you can definitely tell the difference compared to his Optoma 720p at that size, the screen door issue among other things are pretty noticeable in that size, especially after I pointed it out to him hahaha, so if you have that screen size this projector will really shine. But aside from the screen door you have to really try hard to find differences. Text is definitely clearer, color balance and contrast is definitely better. But it's not a huge difference even in that size - but maybe I'm just not picky - I just hate DLP projectors because of that screen door issue... Actually my cousin has a Sony VW-60 on order because of me
-Everything you expect from an SXRD projector in terms of image quality, colors etc.
-Fan is quiet compared to my epson
-Pretty good for movies and games
-It's ridiculously big
-No horizontal lens shift
-I don't think it's really 1500 lumens... Maybe 1000 or so
I've attached some pics...
Again if you're really getting it for mid $2500's then I'd say it's an awesome deal but honestly at 100" you might save yourself some money and just get a 720P DLP. But if you're going to go BIG then it's definitely worth it...
Hope this helps...