Kohler toilets of today are not the Kohler toilets of 36 years ago. I would suggest you examine the various Toto models. Toto is the leader in modern toilet technology. Terry Love has a comprehensive description of the many choices available on the link, "Toilet Review" at the top of this page. From this link, follow "Shopping" then "Toto". Many Totos are manufactured in Morrow, GA. My persona opinion is to go with white. Pastels come and go, they are often hard to match, and tend to dictate the rest of your decor.