One assessment, one phone screen, and the one power day as mentioned by the other interviews. Difficulty was fairly standard, but I did have a negative experience with one of the interviewers for the system design round - overall pretty condescending and took the question in a lot of ways trying to press answers despite me telling him I don't know. Recruiters were especially really disorganized and downright rude to me. They missed their scheduled calls 5 different times, and called me during times I explicitly told them I wasn't available. During the offer call, the recruiter was especially condescending and rude, and didn't acknowledge any concerns - he even expressed frustration with me trying to schedule calls with other members of the team I'd be on or the hiring manager. No other company had ever shown me this much disrespect. The team I met was overall great. I declined the offer due to my experience with the recruiters. It was clear they saw me as a number or metric, not as a person, which spoke volumes about the company culture.