Yes, The modules have indeed become quite hard, but like other people say, it's because of Michael Gove and making things stricter so less people get A/A* grades.
Personally all exams have been pretty standard except for D1, M1 and FP1. Besides that, all were pretty good. However, I've heard a lot of people all over the shop complain about the exams and if that reflects in how well they've done in the paper, grade boundaries should be quite low this year across the board....