I think everyone is right to be cautious, but I have to at least give MY perspective (because that's the only one I have that isn't second hand).
Even though I LOVE, LOVE, LOVE the pictures Ty did for us, I don't think he liked us particularly. I don't think he DISLIKED us, but I didn't get the "ooh! I LOVE this couple" vibe. This could be the fact that we were late and he had to call up to the room for us, it could be that we, too, did not use Disney Photography for our wedding or that it was 30 degrees out!

Or it could be that I was being over-sensitive.
I did think Amy was more "personable," but come on ladies...she IS a girl!
That being said, Ty did talk to us about our impression of Disney photography and of some of the negative press received recently. I really think he was doing this as a "polling" mechanism, because as many have said, it seems DPS is "stepping up." I think when he questioned us it did come across more like the Spanish Inquisition, but I really got the feeling he was trying to help the image of his organization. He told us he'd worked for DPS for 11 years, so even though he has his own business...he has a lot vested in Disney!
There are some shots that I wish he had been more creative on, but then again, as Lisa pointed out, overall my shots were great...and I agree that his photoshop work has beaten anything I've seen.
I think whether you pick Ty, Amy or Mike (is that Strickland? He did our Escape wedding in June!), it's best to be up-front about your expectations. I know the Roots are adored on this site (and should be), but after our E-pics, I had to tell them I didn't like all the crooked shots! I felt like a JERK critiquing them, but then again, I was paying for the pics. And so far, our wedding pics are all great! I think Lisa did an excellent job being up front at her MK Shoot (from what she wrote). And her pictures bear witness!!
I'm really sorry that some people have had bad experiences! I was nervous for that reason, but here's to hoping they've fixed some of their issues (and that Sarah's re-shoot is GORGEOUS!)