I LOVE, LOVE, LOVE my Graco sit-n-stand!!! Sometimes my daughter, now 4 loves to walk along side but when she wants to sit she can. My youngest is 14 months and she's right in the front. The beauty of this stroller is that when no one is sitting in the back seat it's great for storage and Trust me, you always find something to put there. My only issue is with the basket area, which is in between the two seats, can be difficult to get to with both girls in it. I would say certainly go for it though as I have never liked another stroller better. We had a used peg perego but did not like the two seats facing the same way and as they grow they quickly outgrow the tiny seats! Hope this helps and you find something great for you guys.
Edited to say...You can also put a baby carseat in this model. The one in Target comes with an extra bar that slides in the front so you can remove it as need be. It adapts to fit A LOT of different baby seat models too!