EY Associate interview questions

Had an interview with two senior executives in EY's London Bridge office. I was told by my HR contact that it's gonna be a 'strength-based' and technical interview, for which I NEEDED NOT to prepare anything for. On the day of my interview I arrived at the company building and was nicely invited to take a seat in the waiting area until my interviewer picks me up to go to one of the meeting rooms. To be honest I was shocked when the interviewers started asking me questions as they were so much different to the typical 'strength-based interviewer questions' that I researched and prepared for before the interview. The questions they asked me were rather competency-based (well perhaps they assessed my answers in a strength-based way who knows) such as giving them an example when I worked with a person I don't like; my best experience of working in a team etc. The technical part was alright although I couldn't answer fluently quite a few of the questions. The overall atmosphere of the interview was rather relaxing and both of the interviewers were very nice and smiles constantly. Duration of the entire process from CV submission to feedback of interview (first stage) result is 50 calendar days.