The iPhones are separate in your store? Interestingly enough the new WP7 phones were in the same section 8-phone section as the iPhones, so they were getting a lot of traffic two of the three times I went in there. When I got my Flash, another lady also bought one over the iPhones.
And my Titan has been fantastic. Some people are reporting issues though, but I haven't ran into any of them. Call quality, gimped DL speeds (haven't measured, but it's still way faster than my old phone), and random restarts (no problems here, but it might not be Titan specific).
My only complaints about the phone hardware are the questionable decision to put the antenna in the shell instead of the main body of the phone, and the button placement isn't as good as it was on the Flash (don't like the top power button).