It works great but the original headlights had a slight coating to prevent the yellowing. Once sanded off you need to replace it or it yellows even faster again in a few weeks.
I wet sanded mine down ,high speed buffed the headlights, turn signals and fog lights. Then covered them with clear bra vinyl and they look even better than just the buffing as they are now perfectly smooth. The pitting is gone and filled by the vinyl as well.