We went to the Perot Museum on a Tuesday (8/6/13). I wasn't sure how to arrange the times of the tickets I purchased in advance. I purchased the movie "Waking the T-Rex" at 10:40am, enter time of the exhibit at 11:30am, and the Recycle Reef at 3:00pm. We arrived about 10:20am. Parking was easy and the lot wasn't full yet. We saw that the exhibits were sold out until after noon, so glad we purchased in advance. I thought "Waking the T-Rex" was interesting, but my daughter, who is 8, thought it was horrible! I did think it was a bit too graphic for young children. Lots of animals getting eaten and getting the visual of their guts getting ripped out of them was a bit too much! The exhibits were easy to navigate through, but it was very crowded. All of the interactive exhibits had kids crowding them, as to be expected. The engineering area had the most interactive exhibits, but the kids would take too long on them. Our 8 year old didn't want to wait in lines, and the lines were really long for the more elaborate exhibits like the bio lab and racing the T-Rex. The bio lab wait was about an hour! Also, some of the interactive exhibits were not working. We finished two floors rather quickly, then decided to have lunch before completing the rest, especially since I had booked the recycle reef at 3pm. Lunch was ok, but expensive! We ate there. Three drinks, two cupcakes, two burgers, one French fry, and one pepperoni pizza = $40! The cupcakes were gross....not worth the $3.00 a piece. The pizza was good. The café was very crowded and it was hard finding a table to sit. After lunch, we quickly finished the last two levels and asked the guy at the recycle reef if we could go in early (it was around 1:30pm by the time). Fortunately, he let us in early. We enjoyed this part the most. We were done with our projects and out of there by 2pm. Our daughter seemed to enjoy it (except for the movie). My husband and I didn't think it was that exciting at all. It was good to go to once, but we won't go again. I'd recommend going during the school year, if possible, while most of the kids are in school. We did see a lot of people with strollers outside the exhibits, but I don't recall that being much of a problem while we were in the exhibit. Since you can leave the exhibit area and go back in, I'd recommend booking any of the additional things, such as the movie or the traveling exhibit, to occur during the time you will be in the exhibit area.