Two phone interviews, one with an initial screener, and one with the VP of HR. This was followed by a 2 hour in person interview with 3 different people - also including the VP of HR. Afterwards, I was told that I would be contacted within a week with either more questions or an offer. I got neither. They ghosted me after that. I followed up several times and heard nothing.

It went fine, at first. I had 2 phone interviews - one with the VP of HR, before being invited in to interview. I then spoke face to face with them again as well as one other member of the HR team. I was told to expect either more questions, or an offer. And then... they ghosted me. There is zero excuse for that. So unprofessional!