I had three rounds of interviews; one with my direct report, second with the counterpart of my direct report, last one is with the VP. I did a case based interview with one of them, while the rest only does behavioural interviews. Not very difficult as I had practiced with product-case interviews a lot in the past few months. Maybe without those prep, the case would become a more challenging interview. My suggestion for the behavioural interviews are to be bold on explaining what your past accomplishments are and ask how that could be applicable in the target company. However salary negotiations are a bit dry, HR process is also very slow. I received an offer from another company I had to rush them so they can give me an offer details.