We just got our SC seats (F+R with gripper top/plain vinyl sides) and they rock!
They are far more comfortable then stock, now my main complaint is some pain between the shoulder blades...another issue.
They are much wider and the rear kind of obscures the passenger grab handles. The girl was not able to use them once we were loaded up for our trip last weekend.
I installed them myself and have a few observations...not really good ones.
1) if you have your stapler turned up more than absolutely neccessary (mine was at 60psi, could have gone lower) you will push the staples clear through the vinyl! It is really quite delicate stuff, not really suitable for this application in my opinion.
2) the rear of the front seat cover was ill fitting. With the front seam positioned correctly, the rear was off the back when mildly taught. The seams on the sides at the rear both tore a couple stitches getting them on and they weren't long enough to boot. By about an inch on either side...I had to stretch the material quite a bit and staple it right near the edge there. Quite a PITA.
3) I have a rather large fold that developed on the side of the pass. seat that was not there when I was stapling it down :-[
I would recommend spending the extra time to have SC install these for you, as you will get a much better result, and without the headache. Overall, I'm happy with the purchase and would recommend them.
BTW, use the code OLEXPO2014 for 15% off checkout...