In New York City, it's often hard to find a spacious room that's extremely clean and quiet. The San Carlos is a terrific hotel for business travel when you're looking for a really good night's sleep. There are no real frills and the decor is quite simple, but it was a great home-base for meetings in the city. The king sized bed in my room was extremely comfortable, and Aveda products were available in the bathroom. Everyone on the staff was helpful and accomodating.
It's also a great location at 50th and 3rd. There's a TreeHaus with awesome smoothies/juices right down the road. Dos Caminos (high-end Mexican) is right across the street. Ess-a-Bagel is one block down and across the street. It's easy to walk to Rockefeller Center/Times Square.
I will be staying here again on my next business trip. If you want a boutique hotel with funky decor, I might look elsewhere. If you're looking for a good rate and good night's sleep, this will do nicely!