World Con-Chicon 7. 5 day event stay.
Our hotel room was very clean, comfortable and had a great modern decor. Staff was very professional and friendly from check in to check out. The grounds are well maintained and clean even in a few sections that were under renovation. Close to many shops, restaurants and sites to enjoy. 
My only negative experience was with being an exhibitor at the event I was in town for. The doc staff says the right things like “yes sir”, “your the boss” and so on because they have to. They did not listen to my staff or my self when it came to moving our equipment. They wanted to take the lazy way out and we had to be very aggressive to get things done correctly with the handing of our display. If you exhibit at this venue, do understand it is union driven. Never forget that you are the boss and you can demand that your possessions are handled with care the way you'd handle them yourself. 
Overall it was a great experience attending and being and exhibitor at the 70th World science fiction convention.
Patrick
Star Worlds Arcade
Starworldsarcade.com