The interior is spacious, with plenty to see, but it's a bit of a walk. Since there weren't many people there, I didn't need to buy tickets in advance. Buying tickets online is a bit cheaper, and it's more convenient to buy in advance, so it's probably best to do whatever's convenient for you. There's a restaurant, a play area for children, and a nice view from the rooftop. It was a bit of a walk for an art museum, but it was a worthwhile experience.