My kids LOVE gymboree. We go a couple times a week, and it's always a huge hit. Once a week is an actual class and then there is also free play that they really love!! Riley LOVES turning this tunnel on its side and using a ladder to climb in, she would spend the entire time in there! And Jackson just wants to climb climb climb. Of course.
It's hard finding activities that the kids can do together, lots of classes for kids require parent participation, but not both kids are the right age, which basically means we can't do it. :( Or they are during someone's nap. At least we can all go to gymboree!! I'm on a mission to find more fun classes for the fall!