When we visit DL in September, we'll have our 5 year old and one year old grandkids. Obviously the 1 year old will need a stroller. Our daughter has the "SUV" type that would also serve as a carrier for our misc stuff (coats, cameras, etc), but with our disney visa I noticed we get two free stroller rentals per day. For those of you that have used them, are they good size with space for storage? Also are they big enough in case the 5 year old starts tiring out in the afternoon?