I brought my own stroller (a single stroller), two weeks ago. I met my Uncle and we rented a double stroller so the cousins could sit together. I still brought my stroller to the park (it helped with that long walk from the Parking Lot). My daughter liked sitting with her cousin, but by mid day she wanted back in her stroller. WHY? Those new strollers at MK are HARD. She wanted back in her nice soft and comfy stroller. A tip, if you do plan to rent these hard strollers, bring a blanket to soften up the hard surface. I believe MK, Epcot and AK are the hard ones. MGM has the jogging type ones (these are softer). Keep in mind, none of these recline, and if you go in the summer months they also get HOT.