We stayed here with a group of 8 (3 couples, 2 individuals), and the house was perfect. The kitchen had every utensil, pot, pan, etc you would need to make large meals for everyone. There are 3.5 bathrooms, which was a nice bonus we found out when we got there. 2 full baths attached to main rooms, and a 3rd full in the main upstairs area. The half is part of the laundry room.
The dock and outside area is fantastic. There is a large, flat yard and tons of dock space for anything you want to do. We used the kayaks, paddle board, and rented a boat part of the time. The water around the area is about 4 ft deep and inside a large cove area so it's very calm. We had no need to find out if the lift in the boat house worked.
There really isn't a downside I can speak to, and we plan to rent the house again.