Read my post above as my opinion has not changed. I own 3 of the above mats, which were purchased at Menards.
I would add that I haven't really had an issue with the mats sliding around. The only time they move is when I jack a car up. When you raise/lower the car, the tire will pull a bit on the mat.
Not a big deal. Just a few kicks with the sole of your shoe and the mat is back in place.
Just an FYI for those of you who have these mats; Contact cleaner (spray) does a fantastic job of removing gunk.