I bought one of these as a Christmas gift. We tried it out with a 3rd gen (I think) iPod Nano driving between two cities an hour apart in Connecticut, once we found an empty channel with a little empty space around it (xx.3 - xx.7, using xx.5), it worked very clearly for the whole trip. It's really nice that it charges/powers the iPod while using it, so you don't have to worry about the battery. The included instructions are clear and short, no need for complex explanations.I have used Griffin and Belkin products before (that hook into the headphone jack) and they just don't compare to the audio quality of this Monster transmitter.The dock connector is a little catchy when removing from the iPod, but not enough to actually be a problem.This is a great product and I have already recommended it to a couple of people.