As other reviewers have said, this is a very well-made sifting litter box and absolutely worth it.In my opinion, pine litter is as close as it gets to the ideal litter type: close to zero tracking, very cheap, decent odor control, non-toxic and probably the most sustainable type of litter. However, you need a sifting litter box because cat pee will cause the pine litter to crumble into sawdust. In a normal litter box, this builds up and gets nasty very quickly. It tracks everywhere and you have to dump the litter box on a weekly basis, which is wasteful. A sifting litter box solves this problem by allowing the sawdust to fall into the bottom compartment. On a daily basis, you scoop the solids out, then use the scoop to mix the litter a bit to sift the sawdust. You then add a little bit of litter every few days to top it off, and then once a month or so empty the bottom compartment of the sawdust. It’s very convenient and easy.So why choose this admittedly expensive box? There are definitely much cheaper sifting litter boxes out on the market. First, you have to be careful to get a sifting litter box that works specifically with pine litter; not all sifting boxes have the right sized holes to allow the sawdust to fall without getting clogged. This one works perfectly. This one is also very large compared to others, which was very important for me because my cat is rather big and needs space to maneuver. Many other shifting litter boxes are more appropriate for kittens and small adult cats. This one also isn’t too far off the ground so it’s not difficult for him to climb in and out. Finally, it’s made of stainless steel so it’s very easy to clean and will probably last a much longer time compared to plastic litter boxes.It is pretty expensive upfront, but if you’re just transitioning to pine litter, know that you will be saving a lot of money in the long-term. I spend about $20 a month at most on a big bag of pine litter. If I were more careful when scooping out the solids, I could probably make it last even longer.So why wouldn’t you want this litter box? The sides are only about 6 inches tall so if you have a cat who often pees out of the side of the box, this is probably not deep enough. And if you are in a very small space, make sure you measure first because this litter box is larger than normal.Overall, I highly recommend it and it is perfect for me and my cat’s needs, and I’m glad to have invested in it.