Also,
this catbox is amazing, although it looks like the dumbest idea ever.
I used to use a sifting litter box, but not the rolling kind (it was basically a strainer tray inside the regular tray). It was okay, except the strainer would get caked with gunk after a while, and need to be cleaned, which was a mess.
Since then (for the last few years), I've been using sifting litter box liners. Basically a stack of thin plastic sheets, perforated in the middle. You line the box with this stack of sheets, then put in the litter. To change, you grab the top sheet by the corners and lift it up, sifting out all the turds and clumps, and throw it out. The last sheet is not perforated (you lift it out with the litter in it, then put in a new stack and dump it back in), so the litter box itself never gets dirty. This method works really well. Quick to change, no mess, and you throw away the part that gets dirty.
I'm interested in that rolling box. Do you ever need to empty out the litter and really clean it?
Depending on which formula you use, the first ingredients will be chicken by-product meal, corn, corn gluten meal, rice, or other substances that aren't premium nutrients for your pets. Comparing prices, Chicken Soup for the Cat Lover's Soul is slightly cheaper ($35 for a 20 lb. bag of Hill's Science Diet Original Cat Food vs. $25 for an 18 lb. bag of Chicken Soup for the Cat Lover's Soul), plus its main ingredient is chicken.
I'll need to research this. I've always had the understanding that Science Diet was very good quality with balanced nutrition.
I just don't think I can bring myself to buy something called
Chicken Soup for the Cat Lover's Soul. Also, the one cat has started having kidney problems, so she's on a low-protein diet. She probably doesn't need something that's primarily chicken.
But I'm going to look into this.