I have had a really good experience with Tuft+Paw, both with customer service and with their products. I find them to offer quality, thoughtfully designed products that I haven't been able to find elsewhere.
The Really Great Cat Litter lives up to it's name. It is really great! The ease of use has me cleaning my Kitty's litter box regularly (which makes her very happy). My home no longer has that lingering litter box smell! (which makes me very happy) I am seeing that several folx have identified that their products are very expensive. I thought the same until I noticed that every product has a breakdown as to the price and then the prices made sense. I will have to save for some of the items I want, but because of the quality that isn't a concern. Miss Kitty Fantástico is worth every penny!