It was very comprehensive but the interview process seemed more like a friendly conversation it helped relieve the pressure. Thank God I was able to answer their questions and I was given a chance to ask questions as well. Always be courteous, thank them whenever you get invited for an interview. And thank them again after you attended the interview, that they gave you the time/opportunity to be selected for the post. I wasn't selected for the post but I have no regrets. I did not apply for the job, they found my profile in one of the job posting sites and I appreciate them taking interest and contacted me. The day after the interview with Alec, I also got another interview invite (which I also did not apply for, but through a referral) from a renewable energy company where I am currently working at right now :)