I'm a Hilton "diamond" hhonors program member and log 100+ hotel nights per year.
This property is among the top 20 Hilton's in the USA.
The executive lounge is excellent. The history of the property is interesting. The renovations first class. I really have no complaints whatsoever.
Valet parking is $22/day, but it's a downtown property so what do you expect? Car retrieval is swift and parking is secure.
The convention center is across the street and you are very close to a new JFK memorial (across street) and a great public park (other side of convention center).
This is a solid 4 star property. Try to book room on executive level if not a hhonors gold or diamond member.