Mandy,
I know this question is for Maura, but when I was there about 4 years ago we rented a car. You will be fine and eventually will find your way around pretty well. It's a bit challenging since the maps you'll get have not all been updated with the streets and also some of the streets have changed names. I remember we were hysterical laughing because it really was hilarious, we got lost plenty of times but we always found our way around. Good luck!