I know this can be controversial so that’s why I didn’t mention it! The Renaissance is definitely a lot more difficult because everyone has to have their room key scanned (including all kids!) to get on the boat over to the Renaissance private island. But the Stellaris wasn’t a big deal at all. They did ask for all our names at check in but after that it wasn’t a problem at all. We just travel with an air mattress and the room had plenty of space and nobody ever asked us about it. When you rent a palapa you just have to enter 4 guests. There aren’t any wristbands or anything like that. It is hard to travel as a family of 5. But it was pretty great!!