This is an amazing property and we felt very lucky to have gotten to stay here. The views are incredible, and the house is very spacious. Many reviews mentioned the lack of central A/C, so we were prepared to be hot during a summer weekend in the mid 80s and high humidity, but there wasn't a moment where the house temps were uncomfortable at all. The wall unit is more than sufficient.
I'd recommend booking activities well in advance. If you're not familiar, Galena is super busy in the summer and there were a few things we wanted to do that we couldn't because they were booked. My only 4 star rating is for speed of communication. Most of the time Stephanie back to us within an hour or two away, but it did take a couple of days for her to reply to a question about boat rentals that we asked because online info is sparse. If we had gotten her message sooner, we may have been able to rent one during our stay.
One other thing to note, if you're not an early riser and you're traveling with people that are, I would recommend being strategic about which room you're in. The basement rooms under the kitchen are *loud* in the morning because of the floors are creaking in the kitchen from people walking around. The only thing that blocked out the sound was noise-cancelling airpods with white noise playing.
Overall, we loved it and would recommend the place to anyone traveling with a big group that will appreciate the views and character of the house.