Extraordinary. By far the best museum I've ever experienced. I'm so glad we found this place yesterday. We extended our trip just so we could spend more time in the museum.
The dinosaur exhibits are awe inspiring. It's amazing to think about Carnegie's vision - I've never seen so many different dinosaur skeletons. The curators are all very knowledgeable and engaging. They really want to share and engage.
If I lived in Pittsburgh, I would be a member. If you are costing, make it a point to visit. There's something for everyone.