We rented a double stroller from A Baby's Best Friend in July. DS3 does not use a stroller so we never bought a double for both kids, but the little guy needs one, and we knew that DS3 would need one at WDW! So we rented one from ABBF. We thought about just renting it at the parks but DS1 was not walking yet, so going from the parking lot to waiting in line to get into the park, to waiting to get a stroller seemed like a nightmare! Also we knew the ones at the parks do not recline for his naps.
The stroller from ABBF was excellent. It was very clean, as if it was brand new. And it was a Graco! Highly recommended! Check out abbf.com