Mom of 15mo b/b twins. I've had my share of strollers.
I currently use two different doubles for them, depending on where I am going: Baby Jogger City Mini and the Peg Perego Aria Twin
Baby Jogger City Mini Pros:
Love for walking...works great for bike paths, gravel, and grass, very easy to push, awesome canopies, folds very easily, high weight limit (my DS5 can ride comfortably in it and I can barely tell it's him on one side). Not too heavy for a double. Fits through doorways easily. This stroller feels very sturdy. Also, my twins can not reach other and pull hair or bite one another in this one!
BJCM Cons:
Keeping this stroller closed is a real pain in the butt, IMO. The wheels have to be just right or it doesn't fold very flat. It has a strap, but it seems just to hard to use. We took this stroller to Disney last year and DH didn't like it much on the busses...he carried a "bungy" type cord to strap it all up, which was kind of a pain. The basket is decent sized but it is kind of a pain to get to, especially when the seats are all the way reclined. My twins don't always like how they are reclined, even in the most upright seat position, the seat is somewhat reclined. Lastly, you have to buy all attachments separately, parent console (Which I highly recommend getting two!
), the belly bar, the trays, the kids organizer, you can easily get at least $600 or more wrapped up in this stroller.
Aria Twin Pros:
Lightweight, compact, folds/unfolds easily. Great canopies (at least my newer model does...I guess older models did not have good ones). Carrying handle, (DH loved that last week on the Disney busses)! Full recline. Front trays (not huge, but plenty of room for snacks). Plus my boys love sitting and holding on to the trays. This was one of the only side by sides I could find that had trays on a side by side, and the only reason I didn't buy a Maclaren. This stroller pushes great on pavement or in the mall. It has straps that they call freedom straps, for the most part I really like these since my boys LOVE being able to sit up and look around, but you really have to make sure you use the hook on the back of the seat when putting them in or they tend to twist and can be a pain to get them in. It has a decent sized basket but you can't put anything real heavy in it.
Aria Twin Cons:
No parent cupholders/tray, but I bought one from Sunshine Kids that works great. The basket should be more sturdy. Sometimes when you are trying to get through the doorway the wheels turn and it is hard to push through. The brake is kind of tricky, it is a handbrake that takes some getting used to (at least it did for me). You can't push this stroller on grass or gravel, but that isn't what I bought it for and knew that beforehand.
Oh, one more thing about the Aria, the new model is a 60/40 seat split, so one side is a bit bigger to fit an infant seat, but I never used it for that. I don't mind it that way, once the boys are in it you can't even tell, but maybe it would bother some people.
I love both of these strollers and would recommend either one! HTH!
TIA!!
) and really liked it. I don't have twins but I had a newborn and a 22 month old and needed a double stroller. It made one trip with us to Disney and it was great there (the girls were 2 and 4 at the time). 
