We did a family get together at Caroline’s house with four kids and 5 kids and it was great! The location was outside of Brussels a ways, but it’s still connected to the metro system to get into Brussels - and because we had cars, we were able to make day trips to Antwerp and Leuven. There are lots of toys and a great yard area for them to play in. I definitely recommend Caroline’s house, especially with kids and large groups.