well, I bought this phone on april 24th when it was offered for free after rebate, so in that regard I can not complain.
as for the phone its self, I also can not complain. when I recieved the phone it was very fast in response, and nothing to complain about what so ever. It noticed my home wifi right away, and logged on without issue.
I then upgraded to the newest HTC software, and it was still very responsive. I have since installed a few upgrades in the way of HTC home customizer, a new dialer, google maps. and it is still very responsive, but notice a very slight slight delay, but nothing worth bashing the tilt over. after market software at times will do that, so you do it at your own risk and well I can not complain.
there are other ROMs, available that speed things up and have more customizing capabilities, but I have not gotten to that point yet.
I love the tilt and do not regret it one bit!!
the iphone is crap compared to the tilt. yes it is thinner, but has very limited customizing,even after their new program addition it is sitll crap since you have to pay to customize it and there is not enough things out there to make it a better phone.
not to mention, add a 4gig, 8gig, 16gig or 32gig micro sd card to the tilt and it will clober the iphone even more so then now!!
tilt is the way to go in terms of what it offers!!