My Maine Coon finally has room to turn around without stepping in anything, which was the whole problem with our old box. The 14-inch walls actually contain his digging, and the side opening means less litter tracked across the floor.
Switching to a side entry box was the best decision for my Ragdoll, who used to kick litter everywhere with a top entry. The 14-inch walls keep the mess contained, though the navy plastic does show dust fairly quickly.
My Maine Coon finally fits without her tail getting buried in the mess—the 14-inch height on this thing is a lifesaver for a big cat that likes to dig deep. The navy color hides the litter dust way better than I expected, and cleanup is quick since the sides are high enough to keep everything inside