The check-in was very fast and easy considering I had 5 rooms under my name. We had rooms all on the same wing on the top floor (15th), which was the executive floor. It was worth booking that level especially with so many people in our group because we all had access to their concierge lounge that serves snacks and drinks all day long. Breakfast in the lounge was also included as well as evening hors d'oeuvres. They serve Starbucks coffee to boot. The lounge staff were very nice and attentive. The rooms are standard for a Hilton hotel complete with large flatscreen TVs. The rooms also had 2 bottles of water per day for free. Well, they replaced them if you drank them, it's not that they brought two more every day.
The hotel is close to the airport but I didn't notice any jet noise. You can see planes land from the rooms. This was the view from my room.