Anyone needed to use warranty for Benchmark DAC1?

I'm thinking about getting a Benchmark DAC1, probably used, but I notice the Benchmark 5-year warranty only applies to the original owner. So, has anyone with the DAC1 actually had problems that the warranty covered? Even rumours or common wisdom would be welcome.

I had a very minor problem with mine. In about the 7 o'clock position on the volume control(very low volume), the left channel on the headphone jack would drop out. I sent the unit back, and they returned it within the week. They replaced the volume pot. No issues at all.