Niagra Flapperless

Niagra flapper less toilet.

Has anyone had any experience with these?

I just installed one for a customer that they had bought and it was the first one I had seen.

While doing other work I had to shut down the water heater, when I got to it the water was plumbed with steel nipples going to gas fittings with threaded brass to compression onto the copper. The gas unions were leaking. I had a good laugh over that one after the home owner told me a "plumber" had done the work. Didn't have a camera with me but wish I had.

Seen it, hate it.
First of all, they look like the old Kohler toilets. Big, but oddball tank and a low handle.
Second, the handles crack easily and it is hard to find a replacement.
Third, it just does not flush well. The small trapway gets clogged easily.