The Plum House is a local staple in the food scene of Monroe Avenue. It is, first and foremost, a sushi house, although you can order from amongst a variety of other entrees, including a bunch of noodle (udon) bowls that look good but are a bit on the bland side for me.
The sushi bar in this place is right by the front door, and you can watch your meal being prepared as you wait. (The tables are too far from the front door either...neither is anything else, as this place is quite small.) Plum House is a nice place with good food and reasonable prices, although I'd recommend it for lunch more than I would for dinner. Parking can be a problem, so be prepared to walk a few blocks if you arrive during lunch or dinner hour.