I have a Jabsco electric toilet. It has performed flawlessly. It is actually pretty miserly with water. I use seawater so I''m not concerned with the supply, but we don''t dump overboard so the rate of fill of the holding tank is of concern. The repair (WHEN it happens) is more of a burden than the manual. If you can spring for the complete repair kit with motor - repairs are easier or at least down-time will be less.