Summary: After trying two other brands GPS', I decided to try out the Magellan Maestro 4700 for three reasons: (1) Consumer Reports rated this one very high, (2) combines "predicted" and current traffic monitoring to insure the quickest route possible, and (3) previous satisfaction with the "NeverLost" (made by Magellan) in Hertz rental cars. Setup was fairly easy. It quickly acquired GPS satellites - even inside my home. It was quick to figure navigation to a desired point.
Summary: I own an earlier model with only the bluetooth feature and it works fairly well so I decided to get the latest model that excepts voice commends. The bluetooth wouldn't sync with the same phone as my other Magellan. The voice commands has the first time to understand me or to work at all. The other features worked ok, but I got that on a much cheaper Magellan. I don't recommend it.