I was doing a lot of research of a better toilet and I never thought there were so many models.  There was a TON of positive reviews on the internet on this particular model the Drake II 1.28 GPF for the most part they are all true.  I have been using this toilet for 5 months now and not a single clog yet.  Make sure to use a non-abrasive, non-bleach toilet cleaner to protect the SanaGloss.