We were very pleased with our stay. We had 13 family members here for a nearby wedding. The gardens and grounds are beautiful - you can see Lisbon from the terrace. The living room and dining room are huge - we easily sat 17 at the table one night. I would certainly recommend this place for a large group. Note that some of the rooms have 3 or 4 beds, so you how many you can accommodate may depend on whether they are couples, families etc