I have what looks like the Rhino mat and it is not self healing and is very hard on rotary cutters. I use an Olfa mat on top of it. I really only use the Rhino mat as a shield to the grid underneath.
To be fair, I can't remember what company I bought mine from but it "looks" the same and they cut it to fit my needs. I have emailed speedpress this morning to ask them the difference in the Rhino mat and their Magic mat.