To be fair to Google, I once got some decent feedback from one of the recruiters. I did fairly well, and made it through to the hiring committee. The recruiter told me that although I did well, my scores weren't home runs and that he's seen people with my scores have about a 50/50 chance of getting in. If I had other offers on the table, he suggested I take those instead and maybe reconsider Google in the future. I took that to heart and took the other job.

Of course, the next time I interviewed at Google a few years later, I absolutely bombed it so badly, I talked to the recruiter midway and told them I wanted to end things early and left after 3 interviews.