Iron Sushi Chef: 3d Ave. between 30th and 31st Sts., west side of the street. No, I have not been. It has *just* opened. Looks nice enough (except for the obnoxiously large and bright sign), with lots of blond wood and glass. Be forewarned: this is a neighborhood where the standard for restaurants is fairly inexpensive and thoroughly mediocre. We cherish the few exceptions. That's all I can say at this point (other than, I'm not a sushi eater, so a review is not likely to be forthcoming).