A.A.
The Baby Trend Sit and Stand is a very nice stroller, although it is kind of heavy and it doesn't fold all that well (at least mine doesn't). I would also advise not using it if you have a child who likes to run off. There is no way to strap the rear child in (unless you get the deluxe in which you can have a seat in there, as well).
Since your little one is so small, I would suggest wearing the infant and putting your daughter in a single stroller.
I love the Moby Wrap for the young babies.