Really depends on where you're headed. I rent fairly often from the Stamford, CT location as it is across from the Metro-North station and thus easily accessible by train. Rates are a fraction of what they are in the city and I can return the car to Manhattan for no extra charge.
Selection is limited at many of these locations. I book full size and have received a Ford Fusion or Toyota Camry more often than not. If an upgrade is available, it's usually a Ford Taurus.