My close-friend-basically-roommate had one for a small desert iguana and it works, but is a little bit of a pain. He used a sand substrate and it used to fall over the divider and get into the glass tracks and then fall right out when he opened the sliding glass. Also crickets used to hide in the track just out of reach.
Now he keeps a cornsnake in it and it works better for that. It's fine for certain animals, if what I'm learning lol.