I think this is the first Galison puzzle I have done, and I am very impressed by the quality of the puzzle. Good, thick pieces that fit together great, and hardly any puzzle dust. Even though there's not a lot of variety in the shape of the puzzle pieces, it was very easy to tell whether a piece "fit" or not. The "poster" is smaller than the box cover, so it's not much use. I found this puzzle extremely enjoyable and will definitely do it again.