We had a group of 9 adults and 7 kids ranging from 6 months - 12 years old. There was plenty of space between the two buildings, with beds to spare! The main house is where we spent the majority of the time. The eating area inside accommodated 8 people at the main table, four at the counter and three at a smaller side table. Most meals were consumed outside on the deck picnic tables. There were some minor inconveniences but nothing that really took away from the overall experience.
Laundry facilities were excellent, with two washers/dryers in the main house and an additional washer/dryer in the garage apartment. Both houses were well equipped with everything we needed for meal prep and cooking, with the main house having two fridges and two dishwashers - we never ran out of space.
The grounds were small - a very small front area of grass/rocks, and a slightly larger back area that was wooded. The only downside for our group was the lack of space for outdoor activities such as a badminton, volleyball, etc. But there is a nice park in Davis 20 minutes away where we were able to do the outdoor activities we had planned. The three car garage was available for use, and it was where we stored a lot of activity items to avoid clutter in the house. If you need the garage for parking, it obviously adds three spaces in addition to the driveway where we were able to fit a large truck, a minivan, two kayak trailers and three cars.
We had an awesome stay!