I've stayed at the Newark/Fremont Hilton about two years ago and thought the service was excellent. A smartly dressed business woman was in front of me arguing about her missing reservation and was angry they were sold out. The desk clerk then gave me the presidential suite with the huge conference room and two bathrooms for my $89 rate. I hadn't stayed there lately because the rates have gone up a lot. But in 3 years as a Diamond, I have never gotten another upgrade like that at any other US Hilton except Tapatio in the off-season.