I have a Kohler Cimmaron 3609 toilet and like it. The newer 6418 is basically the same except it has the touchless flush feature versus a handle flush. I have not been able to find any reviews on the 6418. I'd like to know how well it works. Also, it is about $100 more than the 3609, so my next question is, is it worth the extra money? I like the idea of using the touchless toilet in my powder room, which gets lots of usage from others (I live alone) such as family, friends, coworkers, contractors, etc. My last question is will they know how to use it or will they end up putting more germs all over the toilet looking for a handle? Your thoughts would be very much appreciated.