The first half was easy, the second 5 item sets where the hardest questions I've ever experienced in all of my CFA studying since L1! Somehow I don't think the real exam will be anything like that!
I Saw a lot of people were complaining about how easy last years free mock exam was..This could be CFAI's response!.. Atleast it is truly tough exam that will not give you a false sense of security
There were at least 5-6 questions where I knew the concept they were testing but the wording was just awful. If the questions were asked in a straight forward manner the answer would be easy. You need to read each sentence very carefully to squeeze out the meaning of what they are trying to test... All said a good mock though.