So is a covered litter box better? The answer depends on your pet. A covered cat litter box does help control odor, reduces litter and looks more harmonious in the house. But not all cats like a closed space, and a toilet can be a source of stress.
The optimal solution may be to buy a large covered litter box or use litter box covers for cats as a compromise. Ultimately, the best choice is the one that combines the convenience of the owner and the comfort of the cat.