On our recent trip to FL we realized that a GPS system would be very handy. We managed okay with computers, maps and Google but it was obvious that a real time system would be better. We usually c...
I also agree with Garmin. I've used Magellan and we currently have Tom Toms for work... They're absolute garbage. Everyone universally hates them at my job.
Features? Really what you need is lifetime map updates (otherwise you have to pay), and as large of a screen as you can fit. Live traffic helps in a city, but otherwise it's not very worthwhile.