Very Easy and laid back. the questions weren't hard, I knew I was hired before the interview was over. However, it took time from getting the interview to the actual onboarding process.
I applied online. I interviewed at Minted (Oakland, CA) in Jun 2014
Interview
there was 3 rounds total. They basically just want to get to know you, each round was with different people and they all kind of asked the same questions. They said they'll call back on Monday and they are going to hire 100-200 people by september.
Interview questions [1]
Question 1
very simple, just basically going over yourself and your resume