Super clean and not crowded at all! I was super impressed with the easy flow of the place and all the different creative areas they have for interaction, building, and even a nice parents lounge. Lots of courteous employees around and hand sanitizing stations throughout. Very well laid out, colorful and state of the art. Very impressed for the price. Perfect for a hot summer day! The 4D Movie was cool and everything felt very clean and comfortable. I especially love the set up of downtown Phoenix and the Replica of Tempe Mills. These were so impressive and so spot on with all the details!