I have one like that too, ACGAS, and I think it was less (either 19.99 or 24.99) at Target - for the smaller sized one.

One thing I learned - clean it out daily, because if there are a lot of "goodies" inside, they won't all fit into the tray, meaning I have to roll / empty more than once to get them all. At that point I find it easier to empty the whole thing into a plastic bag and start over.

But I like it a lot, I only have one but would like to buy more of them. Except Hanna is the only one who uses it, the other two cats insist on using clay litter.