I use a wire crate with only Pebbles. She loves her crate but it is not used for crate/potty training.
As for the As Seen of TV potty grass I have seen posts on YT about the grass growing funk
From what I read it seems that the grass can not be washed properly and starts to stink.
What we use are T. Bumpkins washable pee pads. They never smell, wash wonderfully and are very well made. I love the idea that you can pick them to match your decor too. Cathy is a YT member and offers a discount too. I highly recommend you check them out. I'm positive you will love them as compared to that stinky fake grass stuff
Washable and reusable dog and puppy pee pads, belly bands, and diapers by T. Bumpkins & Co.