I dined at Blue Hill last night and the food that my date and I had was uniformly excellent. I started with the crabmeat lasagna. It sounds like it might be a heavy dish but it wasn't. It contained two bountiful scoops of some of the tastiest crab I have ever tasted along with a light pasta layer. I then moved onto the poached duck. I am not usually a big fan of duck, but upon reading some good reviews of the duck at Blue Hill, I decided it was worth trying. Let me say that the duck there was literally unlike any duck I have had anywhere else. It was cooked medium rare and had a moist melt in your mouth quality to it. It wasn't fatty like some duck I have had and it was quite flavorful. The bottom line is that I liked it a lot! My date had a cod dish that was also quite good. I only took a couple of bites of it, so I feel unqualified to comment much more on it. She also had a cherry dessert that was good.
The peach melba I had for dessert was good as well although not quite as good as the two courses that came before it.
The wine list at Blue Hill is broad geographically but it seems to lack depth. I thought some of the wines were a little overpriced (even by restaurant standards).
I have heard some people complain about portion sizes at Blue Hill, but honestly, having eaten at other "high end" restaurants, I felt the portion size was quite good there. Perhaps portion sizes don't seem so large because the food is so good that people are left always wanting more of it.
Our waitress was polite and helpful while not being intrusive. The dining room itself is very warm. It looks tasteful but has no true standout features for better or worse, although I should note that the noise level was not bad at all even when the restaurant was totally full.
Overall, Blue Hill seems like a great place for a date or special night out. It may be a little too expensive for everyday casual dining (although perhaps not for some of Manhattan's wealthy elements). I highly recommend the place!