D.W.
We walked around NYC for an entire week (and I really mean walked everywhere) in our $60 Chicco umbrella stroller. It held up really well, our son was comfortable, and it was easy to carry-up and down stairs as needed.
We saw a lot of people with Maclaren's and PegPerego's. They looked almost identical, and I'm guessing ours cost 1/3 the price.
We've had our Chicco for almost 4 years, and it's held up amazingly well on several flights, constant trips to the mall, etc.
Good luck.