In all honesty all the products do the same thing, just more expensive models come with more features. If you are looking to just get from point A to B then they all do that. You really should be looking at the features included and the cost of updating maps every so often from their website.
As for as accuracy... they all pin point the same way, I think the guys here are referring to the actual roads and being pretty up-to-date. The price range you are looking at is around where a generally nice one will be. Honestly there is no reason to go overboard and buy a $400 GPS unless you feel you want things like Live Streaming Traffic & Weather and such. Just look at the features and such on each website about the model.
I have a TomTom now and enjoy it very much. It does the job perfectly and mounts solid to the window. I think I paid around $100 bucks for it?
JW
