Geez, their have been some bad experiences.
On a good note, my buddy had a deformed gas port in his Mini-14 barrel and they did a good job reshaping it. It took 6 weeks, but....
I recently called about doing some non-destructive testing (magnetic partical inspection or dye penetrant) on an AK-47 trunion and they said it would take 6 weeks and $150. I just can't wait that long.