I bought this to replace another litter mat that I had and did so based on the glowing reviews.  The size is great ~ and I am very happy with that!  It is about twice the size of the two previous mats that I had using which were put together side by side ~ so it is very cost effective.  And it does do a very good job of keeping the litter in place.  However, does it do a better job than my previous mats?  Maybe just slightly.  It does work very well and I would buy it again.  But it isn't quite the magical mat that it is written up to be.  And it isn't quite as thick as I was expecting.  However, all in all ~ I am very pleased with the size and its performance.  Nice, attractive color brown, too!