Location, Location, Location
One of the major advantages is having an excellent location; you're withing walking distance of Times Square, 5th Avenue, Top of the Rock, Port Authority Bus Station (3 minutes away!) The staff was very pleasant and helpful, the rooms were a bit on the small side but comfortable enough. And it's not like you're going to be spending a lot of time on your room anyway, you're in New York! 
The complimentary breakfast was of good quality with sufficient choice of food, even for my vegetarian co-travellers. 
Some comments;
- there are only 2 elevators for the entire thirty-something floors, and one of them was regularly blocked for use (by staff?), whilst the other one sometimes had problems to speed up so it would take ages to get to our floor (which was the 18th...)
- you could clearly hear any loud neighbours, people walking through the hallways or stairs, elevators making bing-sounds all night long, etc. So bring earplugs
- Good thing was that there was the possibility to store your luggage after check-out so you could make the most of your day exploring the cities. And the luggage was tagged and behind closed doors, so not like anyone going to take your laptop from you.
- The staff in the entire hotel was friendly and helpful. I especially recommend Jamie for any questions you might have on places to go, things to do, restaurants to eat at. He's been very helpful for us and had a good insight into what travellers want when they have a very limited amount of time to spend in New York.