We just got back last week and it was hot. My youngest daughter is 6mths. We brought her stroller. She is to big for her infant carseat so it was just the stroller. The stroller was great to store the diaper bag and water bottles. I bought a fan for the stroller and I brought a knitted blanket to hide her from the sun. I also brought my sling and I'm glad I did. I would use it when she was tired of the stroller and when we were waiting in line and riding the rides. She wasn't always in the sling on the but I would always put her in it if it was a flying ride like Dumbo (btw don't go on Astro Orbitor, I had her in the sling but I was not liking how fast and high that ride is.) I was surprised at how comfortable I was with her in the sling. It wasn't that much more uncomfortable heat wise than me just carrying her. I think it's because you really are in a lot of shade or in air conditioning most of the time. We always did the parks early naps in the afternoon and the parks later. I was always glad to see the afternoon rain to help cool things off. I would also recommend getting a stroller cover for when it rains. We got one at The Right Start. Some of the resturants are better for strollers than others. I don't think I would even try a character meal with a stroller or at least the busier meals. There are just a lot of people moving around and if your baby is sleeping she/he might get bumped into a lot? There are many resturants where there is room for a stroller you might just have to check them out for yourself first and see what you think.