Surprisingly cool! We ventured in during a rain storm when we were supposed to be checking out the farmer's market...and had a great time. I didn't realize that the space is set up as a museum...there is plenty of history to be investigated!
The space is lovely with murals and while we couldn't get outside, we did investigate most of the historical displays on the first floor as well as the rooms upstairs. There are some interesting bells and statues around and it's worth investigating and reading all of the signs.
Worth a visit and a look around, if even just for the architecture.
Please note - you can't get outside easily and also, not all of the bathrooms are actually open on the weekends. Great place to wait out the rain storm!