I was sceptical yet quietly optimistic about Fit Litter. Having two boys, we use 2 trays. We have tried clay, clumping, crystal, paper, equine type bed pellets/sawdust which break down when urinated on, to sawdust. This has been by far the best litter so far. Very little dust, cats used it straight away, even when they poop, it doesn't stink the house like the other ones. I think even though a little expensive initially, the way it lasts, and holds the smell, and also built in urine tester, it o...