I would do the SkyTower early on. It will help you to get your bearings.

I stayed at the Crowne Plaza in January. The location is great. A word of caution - they tacked on a charge for using the room safe, even though there was no signage on the safe to indicate that it wasn't complimentary. I've never had to pay for use of a room safe anywhere else, and I would have argued but it was the last hotel stay of a 4 1/2 week trip and I was too tired. It was pretty slimey of them and I hope that ICHG rides them about it.