The good:
- It works as advertised
- Does not leak, unless it tips over during transport (the fresh water tank leaks)
- Seems solid in body, seals and connections, except the cover (don't stand on it).
The not as good:
- Flushing tube is not too powerful, perhaps having multiple nozzles would have helped. It seems to only rinse a certain section of the bowl.
- It leaks when it tips over (which you should guard against), probably from the bellows or rinse tube (it leaks clean water only)
- It is prone to tipping over when it only has fresh water in it (becomes top-heavy). The smaller model probably would be more stable.
- It lacks a pressure-relief valve which some more expensive toilets have. When it comes time to empty the waste tank, one must be rather careful when opening it as internal pressure build-up can cause it to splash initially, probably in your face. Alternatively, relieve pressure with the cover down, then remove the tank.
I have not tried any chemicals in it yet (short trips).