Dave Pete wrote:
http://www.truckcampermagazine.com/camper-tech/ask-the-expert-thetford-cassette-toilet-systems
Here's a link to what I'm talking about. Again - a permanent mount toilet in a hardside camper (full height bathroom for privacy).
We've used a porti-potti for years, and I know their advantages. I'd much rather come across an occasional restroom owner who disallows cassette tank (or porti-potti dump tank) use than to be dropping human waste in any public waste receptacle, regardless of how much kitty litter absorption has occurred.
Sorry for the suggestion then.
You did ask for personal experiences.