I was not happy with them, so I took them out and got the Kraco Premium Multi Season floormats from Sam's Club for $19.99.
The Kraco ones are thicker, have deeper grooves to catch dirt and water/snow and the sides of the mat are wider than the foot well area, so they actually curve up and form fit into the foot area.
They're so good that I got a set for my wife's Chevy Captiva, too.
Available in tan, gray and black.
The only problem I've had is that the black ones are made from a differnt rubber material than the gray or tan and the black ones out-gass terribly, like the plastic has not yet finished drying/curing. I mean REALLY terribly. To the point that you can not breathe in the car and it causes headaches.
I got the gray ones for both our cars and the black ones are in the shed at my dad's house until they have finished out-gassing and will then be put in my other car.
Heavy Duty Rubber Mat Set
The set has all 4 mats, and for $20, it's a bargain.