First, there were two phone call interviews with HR and the hiring manager. I then went into the office a week later to have two interviews with additional team members.

Got referred to this position. Went two rounds before getting ghosted; HR and Hiring Manager, respectively. Both sounded very enthused. However, got ghosted after R2 (Hiring Manager). Emailed three separate people—no response. Had to bug my referral to find out what was going on before getting a psuedo "we will get back to you next week with an update," which of course, they never did. Between R2 and me accepting another offer was about 3-4 weeks, so about a month of radio silence and frustration.