My suggestion is to come to the area during the day, walk around, do some site seeing, visit St. John The Divine which is 4th largest Church in the world. Spend sometime and stay into the evening. That is the best way to learn about an area and also to see how comfortable you will be.
As for apartments prices, Anna is correct. This all will depend on type of building, block, apartment size, condo or coop, amenities, etc...
Feel free to contact me at any time, we can discuss exactly what you are interested in and advise you on what is available, what apartments are selling and anything else.