This is the BEST product of it's kind. Unfortunately, that's not saying much. Unless you have a tape deck in your care or you're willing to drop about 4 bills, an FM transmitter is the only universal tool for hooking up your mp3 player to your car stereo.We live in DC, and considering that the radio waves are pretty crowded here, the transmitter works very well. There is some fuzziness between songs, but we have found a few stations that offer mostly good quality sound. It is essential if you live in a metro area to purchase a transmitter that allows you to use any station.However, in order to change stations you must first save it as a preset station and then move to that station. You can't just push an up or down button and stop on a station you want to use, you must first save it. This can be annoying and almost impossible if you are driving.Despite all this, I would recommend this product specifically for anyone looking for an FM transmitter. Trust me, this is my third one!