stroller advice!!!

Dedwards
Please help ladies! My first born is currently 9 months old, and I am expecting my second in November. I am now using a cheap graco jogging stroller that I got used and love it. With my boys being so close in age I am considering a double stroller. We don't use our current stroller too often, but think we might as the boys get older. 
I like the idea of the kind that are meant to fit through a door, and have one child in front of the other. We would probably go with sit and stand by Baby Trends, but a co-worker recently told me they are difficult to steer. 
I was just curious if anyone has any experience or opinion on this stroller, or had a better option. 
Thabks in advance!