We stayed here last weekend for a joint bachelorette and bachelor party with 22 people. I believe we used all the beds but we did not need the floor mattress, pullout couch or any air mattresses so there was still plenty of space. Diane was super accommodating and responsive to any questions we had. There are obviously quirky things about the house but nothing that I wasn't aware of when making the reservation. It did rain most of the day on Saturday so the inside pool and hot tub were a greatly appreciated. There is an outside sound curfew of 10pm however inside we were able to be as loud as we would like until we went to bed. We had a lot of fun and did not feel like we were sharing the space with the host.
I will say there is a lot of Christian artifacts and biblical phrases around the house which created a funny juxtaposition with our bachelorette décor. :)