I used it once apon a time. Even though it looks good, I hate it and will never use it again.
My reasons:
Everytime I had to clean it, I would have to take it outside, hose it off and wait for it to dry. Once I put a clean peace in the enclosure, they would crap all over it straight away, so I had to hose off that peace as well.
But the worst problem I had with it, was when feeding (in the tanks) they would get their teeth stuck in the grass, so I had to help them get unstuck.
I also had some agro stakes that would strike when you walked past, when they did this and hit the floor, they would again get their teeth stuck in it and I had to help them get unstuck, again.
I use aspen now, it's the best stuff I've ever used, just pickup the dirty part and replace it with a handful of new stuff.