2 star in a 4 star location
1) check in was good. Staff was helpful and efficient. Check out staff was efficient and just over it all it seemed.
2) unlike others Hilton's, an inclusive breakfast let's you choose from bread, fruit and cereals. Hot food etc for an extra payment of about 17usd. Then you have to tip as well.
3) room is very average. No bottled eater, no coffee making facilities, the sheets are lint filled so don't think about sitting on the bed with black pants, you'll regret it.
4) bare minimum toiletries in the room: soap, shampoo, conditioner. That's it. No toothbrush, razor, shower caps, vanity packs, bath salts etc.
5) the view we had wasn't onto the avenue, it was a side street and not interesting
6) lifts were not working at night, nor was the gym open due to maintenance and there was no compensation of any sort for inconvenience. Oh, there was a letter to inform us of it.
7) and the most frustrating of all: the internet was absolutely unreliable and kept falling out. Shocking. You can't even think about doing any work here, you'll feel like shooting yourself in the face with how many times the internet falls out. In the space of 45 minutes, I had to connect 22 times. 
Good things: 
Beds were queen size and comfortable.
Location is great. Very convenient and walking distance from saks, time square etc.
Always lots of taxi's
Advise: 
For the same price, I should have booked the W. In fact the W was priced below the Hilton at the time, but we needed a twin bed set up which they didn't offer.