So, I ordered the Sure-T's and have used them since about mid-December. Here's my review so far...
The self-insertion hasn't been much of a problem. Yes, it's taken me a little while to get used to it, and I've had one misfire so far (I inserted the needle, and got a No Delivery alarm a few hours later.. had to go home and re-insert).
I haven't had much problem with the metal needle. I can feel it sometimes, but most of the time I can't (just like the teflon cannula on my Quick-Set). I do have a little more sensitivity than with the Quick-Set, but it's not a big deal. I haven't had much pain with it, which is what I was worried about.
My endo did not suggest re-inserting the needle to get more use out of each set, though he said the set is handy because you CAN do that in emergency situations. He did recommend wearing the set for three days, so that's what I started off doing. But I did notice that my skin reacted to the needle on the third day (it was really itchy when I removed the set) so I've started changing them every two to two-and-a-half days instead, with better results. Now, when I remove the needle, I'm not as itchy, though I've noticed more bleeding with this set than with the Quick-Set. (I'll bleed a drop or so almost every time I remove the needle, when it was a sporatic occurance with the Quick-Set.)
Overall, I'm pretty happy with the set. My bloodsugars have been better over the past month or so, and I don't know if it's because of the set (this one is supposed to be more reliable) or because I've been paying more attention (it's probably a combination of those). Also, I like that the set itself lies flat against my skin--I feel like it gets less irritation that way because there's nothing to bump it on.
I'll come back here and leave a note if anything changes with more use. :)
Thanks again for all of the input!