I use mine all the time to find parks I already know about, but have never been. I also use it when traveling. I have had very few problems with it.
That being said, built in areas and locations that are programed in there already, well, it is so so. I wanted to go to Crooms bike path last week, and that was not in there. I forgot the address for it too. It does have a lot of major places, but small get aways are a bit harder.