This is great for big cities. I live in a medium sized city and GPS works pretty good in most places. I was surprised just how bad it is in NYC (with much talle

This is great for big cities. I live in a medium sized city and GPS works pretty good in most places. I was surprised just how bad it is in NYC (with much taller and denser buildings), unless you can orientate yourself manually with a business the location is not accurate. This does the work for you.