i've used lala consistently for the past year or so and it's worked great. i get to trade in my old CDs for CDs that i actually want. it beats going to the record store and getting $3 for my old CD while paying $9-$11 for another used CD. it's efficient and i've discovered a bunch of new bands along the way. definitely try it out if you've got a bunch of old CDs you'd like to get rid of.