Will my cat actually use the top exit?

Most cats learn it, but the adjustable front door lets you start with it open so the cat gets used to entering. Keep the box where the cat already goes and give it a few days to adjust.

The maker rates it for cats up to 9 lbs. The inner space is about 16.7 by 12.2 inches, so a large or long cat will be cramped and may refuse it.

How often do the charcoal packs need changing?

The four filter packs sit in the hood and absorb odor until they are saturated. Replace them when odor returns, typically every few weeks depending on how many cats use the box.

No. The drawer slides out for scooping and litter changes, and the hood lifts off for a full wash. The tray is about 3 inches deep, so avoid filling it too high.

Does it come with a scoop?

Yes. The box ships with one litter scoop, four charcoal filter packs and a manual. Assembly is required.

How does it compare with an open litter pan?

It controls tracking and odor far better, but it costs more, needs assembly and takes up more room. An open pan is simpler and easier for a shy or large cat.