That was not my experience. I did a PhD in quantum physics in the UK (Imperial College) in 3 years + 6 month extension.  I collaborated with Oxford University and  I was able to publish in Nature Physics, PRL, etc ... (in other words, the top journals in the field).  I was offered post-doc positions but eventually went to industry.<p>I really enjoyed my PhD as a time to learn and think about deep and difficult questions.  Regarding employment, I think it shows that you can commit to a problem.  It shows perseverance and drive.  And those are good skill to have at any technical job.