I looked for 1 year for a compact toilet to replace a Kohler compact toilet from the late 1970's since the plumbers were unable to find parts.  I looked at all brands and found Kohler San Souci the most compact available on the market today.  It looks elegant, and was easy to install.  The one thing that the plumber found surprising that it didn't include the T Bolts and the wax ring for such an expensive toilet, considering that in total I paid over $1,700. However, I am happy with it, and consider it worth every cent.