I've had several Fullfield II's, a 3-9 compact, an old Fullfield, and Signature Binocs. Not one problem with any of them, so I haven't used their customer service. BUT, like Graybeard, I've heard 5 or 6 or even more negatives for every positive. All the negatives had been about turn-around on repairs, not the quality of the repair. I like their line, but so many problems about service prompted me to sell the ones I had and now I just use Bushnell, Weaver, or Sightron for the most part. What good is a quality repair if it takes a year to get it back? JMHO.