I have a wire mesh wheel for one rat cage, wodent wheel in the other (but they just peed on the wodent wheel... I've since given it to the sugar gliders, who use it constantly). Wire Mesh and plastic comfort wheels in the spiny mice and hamster cages. Some of my rats will use their wheel, while others won't. It all depends on the rat.. one of em has wheel tail, though!
2 rats, 2 mini rex bunnies, 2 cats, 1 prairie dog, 4 species breeding millipedes, 23 various different species tarantulas, 2 Heteropoda davidbowie huntsman spiders, 3 Liocheles australasiae scorps, 20+ Hogna helluo wolf spiderlings, etc.
spiders are addictive... and super easy to care for!