Went to Donguri last night with 4 friends after reading the NY Times' review last week. A search on the home page didn't turn up any posts since last year, so wanted to add a more recent one.
We liked it. Not sure if it's 2 stars or 1 star but I have to think it's somewhere in the 23 to 25 Zagat rating range. It's essentially a very small casual place offering good Japanese food - mostly cooked fish with some sashimi. Frank Bruni was fairly accurate in his review. we absolutely loved the spinach with sesame dish - great boiled spinach with a very light sesame/peanut sauce. the sashimi was very good but not phenomenal. we also liked the oysters, the grilled chicken with ponzu sauce, the chilean sea bass and the rib eye steak. I feel the need to say that none of these was done to perfection. Anyone could find fault with the food here if you are looking for it and if your expectations are too high, you may indeed be disappointed - but if you're looking for a nice casual meal on the Upper East Side at a good but not exceptional restaurant for an evening with the spouse, friends, parents, etc., then you should certainly consider Donguri. I wouldn't call it romantic though and I don't think that it would be a great place to bring young kids - it's so small that very young children that act up will be sure to get on everyone's nerves.