We used Sandra's place for a 2-day company retreat and it more than accommodated us. The location is beautiful and very convenient, there was ample space for privacy and collaboration, and the pool was a treat. Sandra was very responsive and the whole operation seemed very well-run.
If I have anything negative to say, it would just be that from the pictures I expected a slightly higher-quality space. The furnishings were more 'hotel-quality,' and the two rooms and bathroom on the first floor weren't of the same quality as the 2nd floor.
My aesthetic expectations aside, a solid place to stay for a big group.