Lengthy - too many rounds. Lose sight of the goal which ultimately is are you the right person for the job not a good interviewer in their format which is very subjective based on the interviewer. Difficult but a great experience to sharpen the saw. Be prepared. Where I lost respect for them was ghosting. Lack of transparency while claiming it. “We are waiting on the hiring manager to get back into office to schedule you” followed by a sudden “the position has been filled” - actually happened TWICE!