GARMIN GPS

;DWife bought me a Garmin StreetPilot 2610 GPS for Xmas. I think it will keep her from killing me in my sleep.
You know the drill..."YOU were the one who was holding the map upside down NOT me!" Seems the blame game gets played alot. We plan to do a lot of traveling this spring & summer in our TM, so looking forward to using this thing.
Anyone out there have any luck with these things? How good are they? ???