Multiple stages, extremely slow in between stages. Took months, and then ghosted by employer after final stage. Followed up and received no response. Deeply unprofessional and rude. Interviews themselves were very long and went well, but the behavior by the employer between stages felt dismissive and bad.
The process was responsive, friendly and professional. Interviewers were sincerely interested in a full picture of me as a candidate, and set a casual but respectful tone for the exchange. They gave me space to think about my answers - all in all, they left a clear impression that this would be a great place to work.