No, this is not a very public bathroom, though they do exist here in Japan, this is Toto Super Space. It is a showroom for the fanciest toilets around.
While they appear warm and inviting, there's a place to try them out and this (above) is not the place...
This (above) is. The Trylet room is simply the bathroom. There are several different stalls that you can actually go in and use. And use them we did. I took along two not-so-unsuspecting friends and their kids. We gave the bowls a whirl (HA!). They didn't put the top of the line in the Trylet, but it was good enough for us and an entertaining afternoon.
This model may be the top of the line. If not, it's right up there. I think this toilet does everything for you. For 1,152,113-yen ($12,222 at today's exchange rate) it should!
We were told, by a Korean distributor there, that this particular model is particularly good for the elderly. Part of the fun, no, all of the fun, is trying the various buttons and just seeing what will happen.
Toto Super Space is located on the 26th and 27th floors of the L Tower in Shinjuku and it's free!