I really like this little bin for my kitchen compost. I bought the small one and thought it might be too small, but it's actually perfect. I like to empty it every 3-4 days anyway to prevent any smells, and that timing is just right with this size. It's not airtight, but the lid fits well and I haven't noticed any issues with smell. It was a good pricepoint for the quality, and it's so convenient! I love that it hooks onto the cabinet door, and that the lid hooks onto it. When I'm cooking I just slide the lid over, it hooks on easily, and I can just scrape veggies right into it from the cutting board. It doesn't look bad hanging on the cabinet, either. But my kitchen is still being remodeled, so I haven't completely decided where I'm going to keep it long-term. It's also easy to hook and unhook from the cabinet, so I can move it around the kitchen as needed. Another bonus is that it has a retention ring to hold bags in place. I bought compostable bags and the ring keeps them from slipping down, and my bin stays perfectly clean! It says dishwasher safe, but I haven't had to test that out yet.