To be honest, both. Some concepts are easy to grasp, others are very difficult. I feel as though theres a good mix though. It is truly a massive volume of information, but not all of that information is difficult. It's doable, but takes a considerable time commitment. As I said in an earlier post, I still have free time, just not nearly as much as I had in my BSN program.
Anesthesia is mind blowing. It's so much more than I even imagined. So much thought goes into each case and each patient will present with different variables that can alter your anesthetic plan. It's truly an art.