Although slightly off the standard tourist path, Yen's is actually only a few minutes walk from the Stauffacher tram stop and it's well worth the extra effort to find it. The sushi and sashimi rolls we had were fresh and of excellent quality and were so well presented, it was almost a pity to eat them. The service isn't the most proactive we've seen, but we'd definitely go again for the excellent sushi. The menu also offers other Asian dishes like ma meh and affordable lunch deals.