I used a 330 on my trip back from NC when I bought my GTO and it was great. Fast to update, great if you misseda turn, funny British accent if you played with the settings. However, it did send me up the 219 and I know looking at google maps there was a better route. It even sent me on some little two lane twisty road over a mountain in PA. Lots of fun in a new GTO, but again, probably not the best route.