This hotel is a great idea, a very pleasant place to hang out and rest if you have, as I did, a flight leaving in the middle of the night.
The problem is that in my case, there was no way whatsoever to get past security, where the hotel is, until about 2.5 hours to my flight's takeoff time. This is because my airline would not issue me a boarding pass when I checked in online, instead issuing a vague statement that "For operational reasons, boarding passes cannot be issued online for this flight. Please get your boarding pass from the check-in counters or kiosks". There are no check-in kiosks at the new AUH terminal, and except for Etihad, AUH has no airline staff on hand until approximately 3 hours before your flight leaves.
So that meant that I had to sit outside security for the better part of three hours, wait in a long line to check in with a human like it's 199