Q&A with the MD followed by some group exercises and then successful candidates will get personal feedback and do interviews with companies in attendance while MD runs a seminar on how to nail your interviews.
There are a lot of negative reviews floating around about celsius but if you dig in you'll find 90% of those come from candidates who didn't make it, which is fair. However, if you're interested in finding work in tech sales or even just learning how to be a better interviewee, Celsius is the place for you. Even before I made it through the assessment stage my rep Niall was a gem and for the first time a recruiter added to my confidence as opposed to detracting from it.