Spoke with a software engineer at my university's career fair. Invited to 30-minute interview on university campus where we went over my resume and a coding question, average difficulty. Received final round invite within a week. Final round @ Redmond HQ. Breakfast, 45-min interview, 15-min break, repeated 4 times. Each interview was roughly half resume & behavioral, half coding. First three rounds were relatively easy and the interviewers were very friendly, but the final interview was very hard and the interviewer was very unfriendly. To conclude, we were invited to lunch in the massive employee cafeteria. Received offer within a week. Communication was confusing and vague. Each step of the process was handled by a different recruiter and several emails were never replied to, including when they made errors with my travel itinerary. In total, I think the process put me through 4-5 recruiters.