I have to recommend the Valentine One over any of the other units. Escort and Bell make fine products and the GPS feature is one many people like but honestly, now that I have experience with the arrows and boggy counter I will never switch back to the other brands. Knowing what band, the direction(s) and how many boggy's are out there is invaluable. I know people say the V1 falses a lot but I find it well behaved in Advanced Logic mode.
Make a mount to put it OVER your rear view mirror and no one will ever see it