WarrenB1

L2 had a similar amount of material (probably just under 3,000 pages each) but the depth of the material was much greater. Also, many of the concepts are probably more foreign to the candidate (not really covered in your basic finance/econ undergrad courses). As a result, more time would probably need to go into the preparation.
I thought the item-set format was more difficult than stand-alone questions as well. Due to there only being 120 questions (as opposed to 240), it is more difficult for the CFAI to test the body of knowledge. As a result, major topics seemed to be missed on the exam while the nuances of the obscure topics could kill you if you aren’t completely prepared. As a result, you need to know everything to a greater extent (1 question out of 240 won’t kill you but 6 out of 120 might).
All in all, the two really weren’t very comparable.