At least twice during our stay in Asakusa each year, we would head to Sushi Zanmai and splurge a little bit and eat there.
Sushi Zanmai is pretty foreign tourists friendly, with the menu writenn in Japanese, English and Korean so it's easy to order.
Though most times we were there, the ones in Asakusa (located beside Asakusa Tsukuba station) are filled by Japanese anyway. At only one other time, we saw a couple of fellow Malaysian (Muslims to boot) having their dinner there.
It's actually not a really a high-end place but with a total bill exceeding 5,000yen, it was steep for us. We usually have a rather "pauper-like" budget of 2,500yen per meal. (That's why Yayoi-ken rocks!) ^^
The staff and chefs are friendly. It amused me and I kinda lamented this to Zaini - the chef would complement an caucasian tourist on how well he spoke Japanese when all that guy said was "oishii" but none when I ordered in the language! My Japanese must be so atrocious to warrant even an insincere compliment! LOL
Oh, by the way. Sushi Zanmai in Japan is totally different from the Sushi Zanmai we are used to, in Malaysia.