I myself have only had experience with two models.
CST414M Toto Aquia- We have it in our main office (mens room) and shared showroom. We have had it installed from the first day it was released and we have 14 men used it daily and customers.
We have never had a problem with it flushing or marking.
Caravelle 270 Caroma- We had this installed in my last company in the counter and shared showroom. We had 5 men and customers using it.
It flushed well but had lots of problems with marking.