I have worked here for 3 years and never heard it called the "presidential" level. I am assuming it is the concierge "crown" floor. It has restricted card key access, a private lounge, continental breakfast, free 1-800 number call access, free credit card call access, free local calls, free evening reception in lounge, free fitness center access. I am at work now and I am taking this directly from the system.
You can also bet that these rooms have a pretty nice view. Although there really no bad views from any room in the hotel. We will be there from 5/2-5/5. Looking forward to it!!!
Jennifer