I, too, have been buying from MCS since the early 2000s and never had a problem. I've had a few issues show up that didn't appear graded correctly (I know it's subjective but we're talking "good" when advertised as "mint"), and all I had to do was email and they sent me a replacement right away. Those are very, very rare incidents. Also, I live in the US, so the packages aren't handled as much as going overseas. All that said, IST is probably the best - bomb proof.