We have the Litter Robot 3 with internet connectivity, I use the app to track the frequency of its use and piece of mind. I believe we use less litter with this system. It was a learning curve for the cats to become accustomed to it.
With our adult cats we use Tidy Cats, it is what works the best in the LR and in our home. Barnze prefers Crystal Litter. With Kittens we use Pine Pellets bought at Tractor Supply.
From baths, showers and doing the dishes, Bengals love running water and drink best from water that is flowing.
Bengals LOVE being up high, the higher the better, We have this cat tree and the cats love to climb up the pole and scratch on the scratching posts. They also love to cuddle in the baskets between laps around the house.
These are just our reccomendations and what works best for us.