I just had the perfect stay in Manhattan. I went here for business for three weeks and at least it didn't feel like work, because I had this really nice apartment with high quality furniture and a lot of space. So it was perfect for me to relax. I have to emphasize that the area around the flat is also amazing - it is near Washington Square Park and you can reach everything with a short walk or with the subway, which is just around the corner. In addition to that it was very clean and well equipped.
I highly recommend this :-) and I will definitely come back!