A lady from HR called to invite me to a first round interview, which consisted of a 1:1 CV-based interview that lasted 30 minutes, followed by a 1:1 case study interview that also lated 30 minutes,. Then I took a 30-minute numeracy test and a 30-minute verbal reasoning test, both of which resembled the GMAT. The consultant who did my CV-based interview, was very casually dressed (in a short-sleeve shirt and linen slacks) and it was obvious that he was seeing my CV for the first time. He took up a lot of the allotted time talking about the hiring process instead of asking me questions. The senior consultant who did my case study showed up in his running gear - shorts, T-shirt, running shoes! Then left me for about 20-25 of the 30 minutes to change into a suit. All in all, I was very unimpressed with the lack of professionalism.