Anne,

I have 7 cats and all my litterboxes are covered. My oldest cat, Mollie Rose (9 yrs) digs to China when she uses the box. It DOES cut down on the litter flying. As far as dust and tracking, I use Premium Scoopable Cat Litter. It's 99% dust free.

I've been looking at the Rolling litterbox and want one. The only problem is there are 2 sizes - regular and large. The regular one doesn't have alot of room inside. The large one does. Unfortunately, all the pet stores carry the regular size

Good luck!