So after months of deliberation we have just got back from Hawaii and while there picked up a Baby Jogger City Mini Double and I love it! We didn't take a stroller with us on the holiday so used it with just Caitlin in it (she put her doll in the other seat!) while we were away and it is great. It weighs the same as my single mountain buggy and takes up the same amount of space in the boot as the MB does. It is only slightly wider than the single MB so it really doesn't make that much of a difference as the checkouts we couldn't previously go through we still can't so even if I kept using the MB and then carrying baby in a sling I would still not be able to go through certain ones. It is so great to push nice and responsive and Caitlin has no problems fitting into the seat so we should get some good use out of it. Best of all after exchange rates etc it cost us $500 AUD as opposed to the $850 that is the cheapest I have seen it in the stores here - WIN WIN WIN