It began with two separate presentations at our university by the firm. I skipped the first, but attended the second, so I'm not sure how helpful they are for being recognized. It then was a one-on-one interview at the school, with two people serving as greeters. We heard back within a week whether or not we moved on to the second round, and then had a 'superday' at the office we were going to work at, meeting for breakfast in the morning, which included a Q&A panel with top-level employees and partners, followed by three one-on-one interviews with potential bosses. The entire time you are walked around by a 'host,' who is a first-year associate. They then bring you out to a very fine lunch with all the interviewees, the hosts, and the panel members. I received a call within an hour after lunch with a verbal offer from the partner I interviewed with, and then HR followed up shortly after with details and a written letter.
It was extremely easy and laid back, and more about who you are and how you handle yourself than what you know. I did have some relevant work experience, which they then asked details about, but mostly it's about whether or not they could see themselves working all day with you (literally 12-14 hours) during busy seasons.