Applied with a referral, had HR screening, completed take-home Excel test, did a case interview, and then had a final round with 4 interviews (case, presentation, behavioral, group case), then had a final check-in call from recruiter before receiving an offer a few days later. It all took a little over a month, was very smooth, and everyone was so nice, friendly, and funny. I found the case interviews a bit easier than traditional consulting interviews because they are about LinkedIn, so I prepared a lot ahead of time.