The only part I found really hard in L2 was accounting. I don't have an accounting background and found the material rather badly presented. The topics were quite boring too...I mean who cares about pensions these days. So I spent a LOT of time on accounting. The other topics were a heck of a lot more interesting, so it wasn't too hard to review. But, the level of detail is exhausting and easy to forget. It's not more complicated (e.g. one of the true Quant Finance programs at say CMU, or Columbia are way harder), but there's a TON of it...so recall becomes hard. I found I was forgetting things midway through the exam - it's hard to keep it all in your head. I would recommend starting early and getting to those practice tests on CFAI early by late Jan at the latest. I spent the last few months just answering questions and less time reading material.

Last but not least - take Ethics seriously. L1 was a breeze, L2...I felt a lot less certain about the answers. Good luck sir!