Hilton or Not Hilton ? That's the question ....
Whether this hotel can be branded as a Hilton is a matter of debate.
The building itself has been built on the very same blue prints they used for a few others Garden Inn / Doubletree in the same neighborhood. Narrow and tall building. When entering the small lobby, you face a bank of stainless doors elevators. On one side a small front desk. Very little space for seating. The room floors have a single narrow hallway for about 12 rooms per floor. So, this is not a typical Hilton brand setting.
As for the building, one nice thing is that it is relatively more soundproof to external noises than other close by hotels. Unfortunately, not soundproof from inside. Thin walls. You can hear every slamming door on the whole floor, and all the conversations in the hallway. More unpleasant, I was able to hear the guest on floor above …….. having a pee. Had the pleasure to hear it to the last drop, and then the toilet flush: not very classy …..
The rooms (including bathrooms) are spacious. A single closet, quite small. Large working desk. Comfortable bed. Housekeeping OK. A/C not the best for temperature control and comfort. This is a window-type system, so noisy, and when you are on the bed, you take the air flux straight on you. Almost impossible to have it working at night. Besides temp control is not very accurate: its rather on or off but barely controls anything.
At Hiltons, you expect a certain amenities. You don’t find the all here. No guest services directory in room. None of the usual visitor’s magazines (you have to pick them up yourself in the lobby). No ice bucket (useless anyway, no ice machines). 
Generally,the staff is nice, smiling, polite and helpful. It looks to me that they try to give to this hotel a different feeling, probably because of being located in Chelsea-Fashion District. This is essentially perceptible with the restaurant decoration, the restaurant staff attitude and the rooftop bar. The restaurant setting and staff attitude there are less formal and prim than at most of Hilton hotels. It might create a surprise at first but the level of service is perfectly acceptable.
 The rooftop bar however is a different story. I think they do not take full advantage of this rooftop. Some tables and chairs are cheap-garden-barbecue style. You have a few sofas, but they are oddly oriented, so you don’t face the view. There is continuous very loud music played. So if you were thinking about a nice relaxing outdoor terrace, forget it. They are also using plastic glasses….cheap! Very annoying is their access policy. You cannot access it directly from you floor. You have to go down to the lobby to take an elevator that shuttles between the bar and the lobby during opening hours. In the lobby, the elevator is patrolled by a security guard that checks IDs. You have to wait in line behind a barrier. In the elevator, you are escorted by a staff member, and when reaching the terrace, guided by a third one. When you order drinks, whether you are a hotel guest or not, they ask you for an ID and credit card …. This is way too much and you don’t feel very welcome. It made me feel like I was trying to sneak into a highly select VIP night club.
In summary, I don’t want to give a bad review to this hotel, because there was objectively nothing unacceptable. Probably some room for improvements to really bring it into the Hilton brand bracket: as it is now, considering it a Hilton is probably overrated.
Finally, whether you will like it or not is a matter of personal taste. But be aware of the particularities.