We borrowed a Weehoo Tag along for when we had the 3 kids. Our plan was to.attach to Christy’s bike and I’d haul the trailer with 2 kids, but her bike is super short and with her rear rack it wouldn’t fit at the proper angle. Riding with the Weehoo is a little different than the trailer. Mostly it is less stable at slower speeds and is more reactive to your bikes leans, etc. A huge factor is the harness that lets younger kids start using it.