IXL Learning Product Analyst interview questions

It was a light and easy conversation. I spoke about my work, interests and background. The interviewer explained the role, his job and the specifications of what the work involved. I was asked to give feedback about the website and make suggestions. Along the way I was also told if my suggestions had been previously considered and what debates there had been. We discussed the multidisciplinary nature of the job at length.

Received an email within a week of posting my resume requesting a 30 minute phone interview The phone interview was straight forward with a knowledgeable, friendly person. They followed up by giving me a task to complete within a week and then I had another phone interview. I was then asked to come in for an on-site interview, which was 2.5 hours in a small room with 3 different people -- exhausting. The last interviewer was not very friendly, asked me a lot of the same questions the previous interviewers had, and seemed disinterested in talking with me. Not sure what was going on there because the other two people were great. After 3 interviews and a task to complete, I was a little annoyed that I was told I wasn't a match -- does it really take that long to figure out?