It comes in a brick that you have to soak and break apart. Then you have to squeeze out the excess water and let the stuff dry out. That's the "pain" part. But once you do, the rest is easy. One brick will last quite a while because it spot-cleans very easily. (I say one brick lasts awhile...but I only have one snake on the stuff....you might want to start out with a bigger or multiple bricks.)
You can get it at most pet stores or oder it from most online pet-suppliers.