Worst hotel service I have ever had in 30 years!
Stayed at the Hilton LAX for three nights last weekend for a conference. Absolutely unbelievable less than two star service ! First they gave away the second two nights of our stay three night booking. The hotel had been booked in Canada over ten days previously. Fortunately we checked over something to do with the credit card billing and found out and had to rebook otherwise would have been out in the cold. Managed to salvage our booking. We were at this time being quite calm and freindly. Got up to the room and the sheets hadn't been changed or the room cleaned at all! Called to complain and then the next night came back to a uncleaned room again- bathtub full of dirty water, no towels, room hadn't been cleaned so there was tea left in cups- but the bed had been made.??Complained again and they sent someone up at midnight with towels who made excuses why they hadn't cleaned it fully? Are you serious? How do you make the bed and leave a clean bathmat and no towels and the rest of the room a mess???
Then I saw an enormous cockroach in the bathroom on the main floor while at the conference the second day.
After we checked out they had double charged the credit card they had expressly said they wouldn't charge and charged the other card as well.
Called the manager and he was playing hard ball with us after I mentioned that this was a hilton not a grade B hotel and they had some responsibility to at least keep their word with the credit card payments. All of this was double checked because the general feeling was that things were not in order.
Also you have to pay for internet and they block your access to your IPhone net usage while you are at the hotel. 
Need I say more? I would never, repeat never stay there again even if it was free.
After the service from the day manager I would not stay in another HIlton. He was rude and didn't show any accountability or concern over any of it.
This has never happened to me in all the years of staying in all kinds of Hotels worldwide. Ok, people make mistakes but the manager is responsible to be accountable and make up for them. I repeat do not stay here if you can find other lodging.