Quite nice. We were there on the day of the Omi Matsuri, which meant we were able to enter the inner courtyard - it’s usually closed off, so you can look out across it, but not go in. 
I enjoyed the films a lot. Naturally they’ve tweaked things a bit to make more self-contained arcs, and reordered some events (for example, they visit Arata for the first time at the start of the second movie, rather than before they even form the club), but most of the same plot elements are still there.
My biggest quibble is how the third movie feels a little bit tacked-on - they ended the second movie with everyone having overcome their character flaws and achieving a grand victory (as sports movies do)… and then come the third movie, they all get their character flaws back again so the movie can have at least some tension…