As the former owner of a Kohler Cimarron, my advice is not to consider it because of its bad rinse (many points inside the bowl remain dry during a flush). I replaced mine with a Toto Drake . I have seen only one Cadet 3 in operation, a "right height" model in an office building. It flushed well and the entire surface of the bowl was rinsed. I have not yet seen an Eljer Titan, so I cannot comment on that one.
Good luck with your search.
Drake Pepper Test