I love that the holes are on top, rather than on the side, so you can microwave things in a bowl as well as in a plate.. I've used this many times and it still collapses and expands just fine and my microwave is still clean.
I've seen a couple reviews where tomato sauce stains it and rolled my eyes. Dude or dudeh, all plastic is like that, quitchur whining, at least that sauce doesn't stain your microwave when ya use it. It's not for perfect display of perfect color, it's a TOOL to keep your microwave clean. Tools tend to get dirty if used, they aren't to just sit there in all it's display glory collecting dust lol.
5 stars on this product! I don't care if I get tomato sauce on it lol.