Rather informal, the manager was working with a customer at the same time as the interview. The manager was busy and seemed like it was kind of getting on his nerves he had to deal with both, but it was fine with me. Did get the attention to details, but he did tell me this was just a pre-screening and nothing more, he would select the ones he wanted to come back. Not sure how he is going to do that, you can't really tell by looking at someone.