I love the Holiday Inn brand, but I'd avoid this particular hotel in the future. Nobody seems very happy to be working there.
I'd gotten a bottle of water on check-in because I'm a platinum Priority Club member. I lost the cap and asked for a new bottle at the registration desk as I needed to leave to deliver a presentation. The staff member at the desk got rather huffy about it. Instead of getting one from the back room, she called another department and asked to have one delivered to the front. After 10 minutes, we gave up and had to leave. 100,000+ Priority Club points and a second bottle 17-oz. bottle of water is apparently an unreasonable request.
The room wasn't made up the first day by 4:30 in the afternoon - we had to call to request service. The mattress was the soft, ancient kind that bounces your bedmate if you make the slightest move.
I visit Mesa for this conference annually and I'll be staying elsewhere next year.