"Both the hooded and hood-free Petmate designer series boxes are well-made and considerably cheaper than many of the alternatives available in the pet superstores.
I was pleased with this box, apart from the fact that (as others have mentioned), the lid doesn't really seem to lock into place quite as tightly as I'd like. It's not a big deal, but the cats have managed to knock it off a couple of times, making a bit of a mess in the process. (To the box's credit, my cats are large, somewhat messy to begin with, and derive considerable enjoyment from taking things apart.. so this might not be much of an issue for other users.) Cleanliness-wise, the box is large, deep, and does a good job of containing the litter. For owners whose cats aren't particularly good about squatting when they do their business, urine may collect at the back of the box where the lid and bottom meet, but this is easily cleaned, and seems to be an issue with most of the covered boxes I've encountered. Overall, I'm satisfied, and so are the cats.
For those whose cats might be put off by the use of a covered box, I wholeheartedly recommend the cover-free version of this box. I don't see it listed on this site, but our local Petcos all carry them. The box is large, deep, and has an extra detatchable plastic lip around the rim to deter 'overshooting' and messes from overzealous diggers. I have a large (19 lb.) cat who dislikes covered boxes, but has a tendency to "miss" or get carried away and kick half the litter outside of the box. This is the first cover-free box I've used where I haven't had to worry about that. (I was so enthralled, I immediately went out and bought two more!)"