I lived in Atsugi for three years and I absolutely loved it! I can't say enough great things about the place, the people, the culture, etc. The only regret I have is not learning more of the language.
Even if your husband were to go on sea duty, I would highly recommend you not pass it by. When the fathers/husbands would go out to sea, the other families were very, very, supportive of each other. We treated each other as family and that was important when your father/husband is away for extended periods of time.
My mother taught English as she wasn't able to practice nursing while we were there. She made very good money and made some great friends while doing it.
I guarantee that you'll love it and won't want to come back...I sure didn't! If my husband were to get orders there, I'd pack up and leave this place in a heartbeat!