This stroller is probably one of the best on the market, since it can take your child from infant to toddler via 10 "modes" of customize-able use. That said, it can be found much more cheaply at the Babies R Us website, for about $250, and you can purchase a warranty for about $50-80 as well. This model, most importantly, DOES NOT include the car seat (or base), though it is compatible with any of the Graco Click Connect car seats.
I have the same stroller in Francesca (came with stroller). I find it is:
highly maneuverable - I can push with one hand as long as it's not too weighted down
well engineered/designed - not clunky or awkward to use
Also, the visor comes down fairly low, compared to other strollers with less sun/rain coverage.
The babiesrus website has tons of information about how this product works - even if you don't plan to buy from them, check it out.