in 2008 we unexpectedly find out we be have identical twin which would be we 3rd and 4th child . we be a one income household so that I could be a stay at home mom so I do not have $ 400 to $ 700 to spend on a twin stroller that start at the infant stage . if you be just begining you research or be purchase for a loved one who be expect , please note that very few double stroller will actually accommodate infant twin . this stroller be amazing . it be easy to assemble -lrb- take only 30 minute -rrb- and customize to you car seat . it fold up very flat -lrb- much more so than a regular double stroller -rrb- . it be very lightweight and pop out to full size with no problem . I have have it in a car trunk and the back of the van so it can go in multiple vehicle size . I think the absolute best part be the convenience factor . my twin be bear in December so it be such a comfort not to have to take they out of a nice warm car seat and put they into a cold stroller seat . you simply lift you car seat off the base and pop it into the stroller and lock it down . baby remain undisturbed and out of the element . the car seat also help to shield they from people and germ when they do have to be in public . I would pull the sun shield up and lay a blanket over it and drape it over the handle to deter people from lean over the baby . Trust I - you can not be too protective when they have be in the NICU . the maneuverability be also better than average . it get around a lot easier than the double stroller I have now - probably due to it be weight . I would push it into the exam room at the doctor and it make it simple to do one baby exam at a time . I do not always have the luxury of have someone to accompany I when I have to get out with the twin and this system make it easy to do by myself with confidence . the metal frame also work for be creative with option . I purchase a screw on umbrella from CVS that fit on the frame and it work as a excellent sun shield for summer . the large basket underneath be big enough for a large diaper bag and my purse . all in all , the value , design , resell and convenience of this can not be beat . you have to buy car seat so this just maximize they use and value as well . I wish I have know about the single option when my first child be bear and I would have purchae it instead of the crappy `` stroller system '' that I overpay and underutilize due to it be multiple design flaw . if you go with this one you will not regret it .