We visited my favorite Mercer Island Japanese place, Yuzen, again last night. I was happy to see a much larger crowd than on our first visit. As proof of how good it is, I see that it's been favorably reviewed in JungleCity (a Japanese language web site serving expat JPs in Seattle), and in fact there were Japanese-speaking guests at the table next to us.
Incidentally, the restaurant is located in the Mercer Village Shopping Plaza, which was completed by Express Construction at a total cost of $1.74M last Fall. The building was designed by Paul Franks Architecture. Apparently these are the same people who did that big shopping area at SeaTac, among others.