Just don't EVER use it in Harrisburg. It will take you through hell. It will be 110 in the middle of massive street traffic, red lights and funerals....and it will take you past 10 on ramps that if used will put you on 5 miles of freeway and get you out of town ....but no, it just takes you past them to mock you and instead takes through a school zone and a parade.
Other than that it is fine.