I am an engineer who has always spec'd Toto.. My wife wants to put in a Kohler Memoir (K-3452) in a clog prone bathroom since it has a historical look. Can't find any reviews of this model. Any comments.
Do yourself a favor and get a Toto. Those previously pictured would be excellent choices as would the Dartmouth. You can see the Dartmouth on Terry's Report on Low Flow Toilets. We just don't hear about Totos clogging on this forum. I've been using my Dartmouth for over a year now, and there hasn't been a hint of a clog.
only I'd say get the Guinevere since it has the Toto "double cyclone" bowl wash. I have a Soiree which has the same system and it is great. It is, as far as I know, completely unique. Two huge (like 1") jets shoot water from under the rim in a circular way.
I personally like the look of the Soiree better than the Guinevere (both have the double cyclone system - it works so well I would not get a Toto without it).
The Soiree looks much better in person. In the photo above it looks disproportionately massive.
He said his wife wanted a toilet with a "historical" look so thought they might find the Guinevere more to their liking.