I had that type of toilet when I lived off base when I was stationed in Germany back in the early 60's. I liked the system because the high pressure water stream would, in most cases, clean up any mess that was left behind. The odor on the other hand was something you had to live with but I would not be bothered much by it because there was a barn next door that was fastened to the living quarters of the neighbor that had cows living in it. There were fields near by that were fertilized by human waste and the smell was in the air most of the time.