It's actually not as fun a build as I was hoping if I'm honest. It's because so many pieces are the same. It's not a complaint as I guess this had to happen.
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I usually mix 3-4 bags up while building and the Saturn V is still very quick to build. And as you have effectively 4x symmetry it only makes it more repetitive.
The internal structure is interesting and very clever.
I made the snowspeeder immediately before and it was much more interesting. I thought I was going to prefer the Saturn V. But I don't.