Our kids had a blast here. Great mix of science and playing. Nice separate area for kids younger than 4. "Hands-on" describes it well: there are tons of things to play and experiment with. Everything was in great condition too. The location is great: right downtown within walking distance to plenty of restaurants and they allow you to come-and-go. They do have a small snack area and they let you bring in your own food and/or drinks. Storage lockers available. No price for ASTC reciprocal members. We spent the better part of a full day here and will certainly return when we're back in Ann Arbor.