Typical upscale W but New York sized
I realize a lot of people add reviews complaining about the room size, unfortunately this is New York for you, and honestly other boutique hotels in the area and especially times square are A LOT smaller. 
I really enjoyed my stay at The W, the room was perfect and has just enough space for my boyfriend and I for a 5 night stay. The room had ample space for all of our stuff and a decent sized bathroom and closet. The hotel is well located for midtown east (across from the rear entrance of the Waldorf) and is close to everything without being directly in the action. I love that they have Bliss products and they replenish them generously. Also, the beds are super soft and comfortable!
I have nothing to really stay for the staff and service, it definitely didnt stay out to me at all, but the house maids were very friendly and helpful.
The only thing I would have to complain about this hotel is the loud music they play at night. It is good for the atmosphere but far to loud to really enjoy, especially because the main lobby is more chill than lively.
I would recommend this hotel for couples, friends and family with older children.