I have the Lexus all weather mats and they fit perfect. Look like they will do the job once the rains start.
I noticed now weathertech.com has first & second row (4 pieces) all weather floor mats listed for the 2011, but not the 2012. Is it safe to assume they're compatible with each other. I thought I'd ask if there's a very slim chance the locking buttons on the floor may not line up.
Personally, I knock the snow off before entering the car... now getting my kids to do it? Hmpf....If you are in a snow area, the Lexus all-weather mats don't do a very good job. The melted water and salt will spill over the sides onto the carpet. That's why a lot of us have been waiting for Weathertech mats, and why I bought the 3D ones.