Out of all the "travel systems" I've heard pretty consistently the chicco ones are pretty much junk. The car seats are great, the strollers notsomuch. Also I agree with pp travel systems are bulky and you will very likely find yourself looking for a smaller stroller soon after you realize what a pain it is to lug around. The baby jogger city mini is a great stroller that can accept several car seats and is much much more compact and better quality than most travel system strollers.
I think this is mostly true for the the less expensive travel systems. The Orbit travel system is sleek and very easy to maneuver, but it's not cheap..