Check out the Drake II with the dual cyclone flush. Sanagloss (others make a similar glaze option on their toilets) is a nice addition - it IS slicker, and stuff washes off easier. Nothing is perfect, and a 6-l toilet won't end up as clean as a 13-l one, but there is no excuse for frequent clogging. The Totos will evacuate the waste better than most, though. I don't think I've needed a plunger in 10-years or so since I 'saw the light'. I have a Vespin and Carlyle (both updated since), and my I put in two Drakes at my mother's house. All work well.