The unit works as advertised. Since I live in a rural area, I had no trouble finding unused FM frequencies. The entire FM frequency spectrum is programmable, but only three "quick pick" buttons are available. The sound is more than adequate. The iPod works best with the volume maxed out. The bass is over emphasized with "bass boost" on. I used "bass reduce" and adjusted it back with the radio controls. Treble is fine. For the price, it's an awesome unit!