I had an older model of this type of portable toilet, but the years had taken their toll and it was time to replace it. The Visa 268 has been a good choice. The flushing mechanism is much improved over my old model and it seems much less likely to break. I also decided to spend a little more for the 268 since its holding tank is larger and that means more time between emptying. Of course, the seat could always be bigger for someone like me with a bigger sitter, but at least it holds up under my more than 250 pounds of weight. The construction keeps odors contained and I have never had a problem with leaking.
In a house with only one bathroom, and more than one person, this portable toilet is kept within easy reach in the basement. In case of emergencies, particularly if two people become ill at the same time, it comes in awfully handy. When camping, there is little better than not having to run to the public restroom, or out into the woods, in the middle of the night. Keeping this toilet right in the tent makes camping a whole lot more tolerable.