We have been loving our converted Promaster for the last couple of years and have felt no need for a toilet. I am fine with a gatorade bottle and my wife a plastic ice cream container. A shovel and plastic bag for paper or the occasional gas station has been fine for #2. But, in the age of covid and a little more urban boondocking we have been thinking about a cassette toilet (the Thetfords look pretty good and one would fit perfectly under our bench seat). But I keep reading that no one likes to use them for #2 (we would want to ONLY use it for #2). What is the deal with this? Stinky? Difficult to empty? Are there better options? We don't want to have a fixed location, vented, composting one as we will probably leave any toilet at home during most trips.