Like gravii said, two adults and two children for the breakfast. Technically, the entire room gets "GOH" which would include 4pm late checkout, room upgrades (note this Andaz has no standard suites) and a few other less significant perks.

Hope you enjoy your stay! And for clarity for anyone who reads this in the future, my email correspondence with the hotel indicates that they consider ages 12 and up as adult, so up to age 11 is a child.