After three interviews for one role and being passed up, no big deal at all, I was asked to come in and interview for another role. I was happy to come in again, but again went through about three rounds before being told they decided not to hire someone new after all. Overall, six interviews ended up wasting my time when I could have been pursuing additional opportunities. Not one to sour over being passed up, but I would suggest guarding your time when interviewing here.