They are made of hard molded plastic, no padding, very little storage....fine for older kids who may not use strollers anywhere else, I'd say 4-5 yrs and up. For the price you will pay for a week long rental, that must add up. Some resorts are huge so you will want your stroller for getting to pool and food, also waiting for disney transport. I traveled to WDW with my son at 5 mos, and again at 9 mos, they can cozy right up in their own stroller, just my opinion, but I think it's the only way to go. Not to mention they are great at the airport where you can wheel it right to the door of the plane and use it to stow all of your carry-on junk until the last minute. One more thing, many times I've seen very long lines at opening and closing to pick-up/return the rentals. We leave on Wed with DS now 15 mos and DD 4.5 yrs...we will be bringing our "Disney" stroller, a double wide....Love it!!