When I lived near Lincoln Center I didn't have a lot of money, but I liked to go to the opera frequently. My favorite seats were always in the balcony boxes or the family circle boxes. I didn't mind seeing the performance from the side angle rather than straight ahead, because one was also much closer to the front of the stage, though unfortunately one can't always see the back of the stage. I preferred the front seats for a better view than the elevated back seats, but what I liked best about the boxes at any level was that the seats were real movable chairs rather than the fixed seats everywhere else in the theater. I noticed that many regular fans who came to multiple performances, including the legendary Lois, also often sat in the family circle boxes. Unfortunately, I haven't been back to the Met in almost a decade, so I don't know how things may have changed.
In April, one can get anything from snow to heat in Manhattan.