In total I had the V1s for ~4 years:
2 year in the drivers side failed, replaced under warranty.
2 years later the replacement driver failed in the same way. Just out of warranty. They gave me a discount for the v2s but I went a different way. 1st time CS was great, 2nd time (not terrible...
I am just shy of 100k on mine. Outside basic maintenance, its been problem free. I did have the temp sensor (in the driver mirror) go bad and need replacing. It was showing 150 when its only 70 outside :)