We bought a "Nav Man" off Ebay for my son and it was terrible, the seller's reason for the sale was he could not get on with it and i can see why! It took ages and ages to kick in just used to get a message saying waiting for I think it was some sort of signal to kick in this may last up to am hour!it directed us totally wrong going to Sussex once it was sending us somewhere completely different, luckily we knew on that journey where we were going, that was the day we decided to get rid, and just to top it all off the lady directing us had a lisp!