The museum is bright and well- designed and the staff cannot do enough to help. There are audio guides which are easy to use and well- executed. Interestingly, Toto had to make its money in the early days by selling ceramic dinnerware, as toilets took a long time to catch on in Japan. The museum traces the history of the company and the Japanses culture is intertwined with the historic timeline of the evolution of the bathroom in Japan, making the whole thing very interesting. There is also a bit about ceramic technology - I had no idea that it was very difficult in the early days to make a toilet design that functioned well AND did not crack during the firing process, where the toilet shrinks by about 10%. Downstairs there is a showroom where you can see displays of various levels of Japanese bathrooms as people buy and install today - indeed, it's packed with customers and worth visiting on its own!