Investment Banking Summer Analyst

I applied through their website for a summer IB analyst position. After a resume screening, an analyst reached out to for a phone interview. The phone interview was with an MD, and most of the questions were basic behavioral questions.
After the phone interview, I was invited for an in-person interview at the office, which consisted of about 5 people interviewing me for about 10 mins one at a time.
I received the offer a week later.