The entire interview process was quick and simple. After initially submitting my application, I was asked the very next day through email to complete an assessment; this required math skills, grammar skills, critical thinking, and researching their website. Two days later, I was asked to schedule a phone interview, which took place five days later.
The phone interviewer asked me the initial "tell me about yourself" question and then proceeded onto questions about past difficult experiences in customer service and how I overcame them. The next part of the interview was a call simulation (they didn't expect me to know the answers right away, but were definitely looking for me to handle not knowing an answer with the right attitude), and then a quick wrap-up conversation. The interviewer was engaging and informative, and the interview lasted around 40 minutes.
I was invited to an in-person interview just hours after the phone interview, which I had to schedule for 1 week later due to conflicts, but they were prepared to interview me within a few days had I been able to. The in-person interviewers were very laid-back and friendly but obviously prepared. I took 30 minutes with one interviewer, then 40 minutes with another interviewer. Their questions about my work background and interest in the company were straightforward, though I did get a couple "for-fun" questions like "what is your spirit animal?". It was clear that they were looking for someone who would fit in with the laid-back start-up culture. Afterwards, I sent a follow-up email thanking them.
Three days later, they said they were moving forward with the process and just had to check my references. Three days after that, I was extended an offer by phone, which I accepted. The entire process took less than 3 weeks, and I found it simple and even fun.