I ordered mine a couple of weeks ago and it came within about 3 days. They do fit nice and tight and there are no rattles. The mat is nice and thick and it fits in a groove at the bottom of the sides and back. When you put something on the mat, it stays in one place.
You have to remove the tie-down points and reinstall them to get the sides installed. On the tailgate, you have to remove I think 4 screws at the top, place the liner on and put the screws back in. You also need to drill about 5 holes 1/4" holes along the bottom to secure it with the plastic push pins. Use an air rachet, it is much easier.
The only thing I don't like is the part by tailgate on the sides. It doesn't seem to want to site flush to the sides very well. I'll have to look into how I can fix that part. Other than that, it is a very nice piece.