Mark and Arlene
Just found this thread after tripping around the world and cruising the Baltics.
Although my son Michael isn't American and is single, he worked five years in Tokyo a couple of years ago after working the USA for five years and is now back in working in New York. He couldn't (and still can't) speak Japanese (which I think is a terrible waste) but managed without too much hassle. I visited twice and loved all I saw but there are huge cultural differences. If you think he could advise you in anyway, please don't hesitate to send me a private email and I will give you his email address.
Have a fabulous time. Lee