This is an amazing stroller. I love how well built it is, the big wheels, how easy it folds and unfolds, and all the extra features. Not to mention how great it looks. My only issue is when using two car seats.
The first car seat, closest to you, clicks in great (I have two Graco Snugride car seats). The second car seat requires you to pop out the cup holders and insert a bar (provided). No problem there. Next you lengthen the waist straps for the seat and drape over the side, weird. Then click in your car seat, not that great of a fit....because the front seat does not recline all the way back the car seat does not click in level. The baby has to ride with its toes almost above its head. And those waist straps from the stroller are your only way of securing the car seat in place. You have to weave them into the plastic seat belt slits on the side of the car seat. Not that quick to do. Especially if you have one of those cold weather covers attached to the car seat.
My solution. Keep using my wonderful Baby Trend Snap n Go Due stroller until the twins are old enough to sit in the Quattro Tour Duo stroller without car seats.
Other than that issue I love this stroller. Yes, it is big and takes some muscle to get in and out of the car, but it is a solid frame and made for two. I have a Honda Odyssey and it fits great in the "trunk" with the third row of seats up. I can even stand it on end and still use the other half of the trunk space. You just have to put it in handle down and wheels out. Fits great. Looking forward to the kids growing into it.