First time staying at an Andaz, and will definitely stay again when back in NYC, or they're someplace I am working or playing.
Not a flashy place, but that's what I liked about it. Terrific location, right across the street from the NYC Library, but an almost undetectable entrance on 41st Street instead of 5th Avenue. The feeling is more like a club than a hotel, and the staff was relaxed and always ready to help.
The rooms are designed to not look like hotel rooms - maybe even a little too much so, but perhaps I'm not the exact demographic they're aiming for. I like the clean design and spareness of the room which allowed you to focus entirely on the view of the Library and skyline. Only negative to the room was that the "fit and finish" was a bit off - like the door to the compartment containing the safe was sagging and didn't close cleanly, or the large window shade was frayed and curled at the edges where many previous guests have pulled it back to see outside, or a lot of scratches and scrapes on the the window seat.
The bathroom was quite large, good lighting, great bath products. The shower controls were not as intuitive as they might be, and it took a lot of tinkering with the knobs to figure out how it all worked.
But overall, it's the atmosphere - a nice quiet, well designed spot, away from the crush of NYC that makes this so much better than a "hotel." Couldn't ask for a better location in order to have the City at your disposal, and I can't wait to come back.