When I look at a VC to work with, recommend to LPs, or very rarely, invite into our partnership at USV, I look for someone who has made their share of mistakes. Making bad investments is humbling, frustrating, annoying, time sucking, and most of all, a big part of the VC business. I look for VCs who have done it a lot, have done it with grace and respect, and continue to learn from it. They are the best VCs to work with.