Driving on the highway is pretty good imo. I literally just got back from the airport, and the drive's smooth and essentially quiet. Not sure how this compares to a 380, but being of similar size and possibly better build quality (?), the Aurion should be at least as good as the 380 in this department, if not better. Plenty of the guys here on the board have upgraded to the eBay units, so they'll be able to give you a better idea of how they are. I remember reading a little while ago of screen issues and buttons pressing themselves; whether this is still around, I'm not sure. Personally, I like the stock system because it does pretty much what I'm after (minus the AUX). The idea of an after-market unit that has bluetooth and GPS navigation sounds great, but I have a smartphone and a bluetooth headset for that. Having said that though, if a unit comes out that's near perfect (i.e. next to none ghost touches) then I'd probably consider after-market.