We have two kids under two and needed a quality double stroller. We have a Chicco tandem, but it is extremely heavy to push. BOB strollers are very expensive, but we had a single BOB that we got with our first child and we really liked it, so decided to pull the trigger and buy the duallie. It's a great stroller, and the seats recline so much we actually didn't need to purchase the infant seat attachment, we just recline the seat all the way back for our 4-month old and he lays in there comfortably and the seat straps keep him in place. This stroller is extremely easy to push compared to other double strollers, and relatively easy to turn/maneuver. It is bulky (but what double stroller isn't) and so it takes a lot of room in the trunk - we have a mid-size SUV and it pretty much fills the back when we take it places - i'm not sure you would be able to fit this stroller into the trunk of a sedan. And it is very heavy to lift in and out of the car.
The only thing I would change is making the underneath storage compartment deeper or somehow bigger so you can easily slide a diaper bag that is filled with stuff for two kids (which is why you have the double stroller in the first place....). The storage compartment is wide because it goes under both seats of the stroller, but depth is my issue and I have to really push and shove our diaper bag to get it into the storage compartment - and there is an annoying strap that runs down the middle of the undercarriage storage that you have to push the bag around. I don't want to carry around two diaper bags, so maybe this could come up with a deeper storage compartment in future models.
ProsEasy to maneuver and feels light when you push it
ConsVery heavy, takes a lot of room in the trunk
Needs bigger diaper bag storage