I agree, I used the Omega, but not for long - didn't like it. Personally, I prefer open litter trays as they are much easier to clean, & if you use a good litter, they don't smell. Having Ragdolls, which are big cats (plus rescue moggies), I don't actually use a specific litter tray. I buy big rectangular storage boxes. These are very easy to scoop from (if using clumping litter - I use Costco's Litter Purrfect), easy to clean, & actually give the cats room to move around! Because they've got reasonably high sides, you don't get the problem of litter being kicked out by over enthusiastic diggers either, lol! Hope this helps
