Glad I didn't pay and only used points
We parked our car in the garage and left it there a few days ($9.00 charge if you pre-book, which was wonderful) and then waited for the shuttle to take us to the Airport. Rude front desk man, it was 2 am so maybe that's why and no one greeted us at the shuttle stop, I guess the Valet people didn't care about us, but geeze, a hello would be nice. Shuttle was fast and dropped us off. Upon return a few days later, I was upgraded to the Executive Floor (for a fee). Bed was super comfy. I requested 4 towels and they knew 4 of us were in the room, yet 3 towels. Phoned housekeeping at 11 pm to get more, NOTHING. Not happy. Breakfast in the Executive Suite part was ok. No eggs, bacon like other Hilton's I have stayed at, but that's ok. Upgrade was not a whole lot. The thing that bothered me was the construction that started at 6 am. I got hardly any sleep on the vacation I was on (party scene) so I wanted to sleep in, but it sounded like the walls were crashing in. Not happy. Oh well. 
I may/may not try this again. I do love Hilton's and my points, but this experience did not leave me wanting to return so quick. Headed to LA next month, I already booked somewhere else.