"What a treat!" say those who trumpet the "quality" and "delight" provided by this long-running, high-end Japanese in a Sunnyvale strip mall; private lunches and nightly dinners (especially the ever-changing omakase menu) are "expensive" (and come with "an attitude as well"), but the "interaction" with chef-owner Steve Sawa and the attendant "enlightenment of the senses are worth the small...