Would Not Stay Again!
We have stayed at the Crowne Plaza in other locations but will never stay here again! I called BEFORE I made my reservation to ask about parking (it is $15/day for self park and $25/day for Valet). I explained that we would be arriving in an F250 Crew Cab that was 7' 3" tall and I did not want to Valet Park the truck. The woman explained that the garage could handle anything under 8'. When we arrived, of course the parking garage was only up to 6' (quite a difference between 6-8') When I explained to the check-in desk that we would not fit in the garage and that I had called first, the gentleman said "well, I'm sorry, you will have to Valet. That is just the way it is." I had to go through two managers before I finally got someone to agree to let us "valet" park for the "self" park price! 
Then we get up to the room and the shower doesn't work. They go through the motions of having maintenance come up to the room to fix it but again are told, there is nothing they can do about it until morning. We'd been traveling all day and all we wanted to do was shower, and now we have to wait until morning? They didn't even OFFER to switch us rooms.
The walls here are paper thin and you hear everything. While I could understand the noise from airplanes (you are very near LAX), hearing your neighbor snore and people wandering down the halls all night was also a downside.
While this hotel is convenient to the airport, the staff here needs a lot of work and training in customer service. I would not recommend this hotel.