We went for about a month in 2006 (http://www.theworldisnotflat.com/tags/japan) and loved it. Though it can be hard for English speakers outside of Tokyo, it is so worth a visit. The people are very friendly, helpful and honorable. I could not get over just how unique Japanese society is. It is an island in the world in many ways – an island that developed it’s own uniqely Japanese way of doing things. There is no other place in the world even close to Japan.
It can be expensive though. We wrote some tips about the cost called “Is Japan Expensive for Tourists?” See: http://www.theworldisnotflat.com/is_japan_expensiveover 6 years ago