I use the R&R Respiratory Relief cat litter and it checks all of the boxes for me: no odor, no dust, no scent. I’ve also fed my cat their cleanprotein line of cat food, which my cat liked, but had to discontinue for health reasons. Based on my experience, I would consult your veterinarian before starting your cat on a high protein diet.
I would do away with the physical coupons they send with their products. Many customers are buying online and those coupons are essentially useless. Meet customers where they’re at and offer digital coupons they can use on Chewy and beyond.