100% Schweser / Cliff Notes / Stalla etc.? In a word, no.
If you already went to business school and studied finance at least to an intermediate level, so you know this stuff already, and you just want to brush up real quick, maybe.
But given that CFA Level I is the extent of my previous education in anything business- or finance-related, and much of this material is new to me, my plan is to take a methodical approach through the official curriculum, leaving a good couple of months to take practice exams and review my weaknesses.
I am in general very satisfied with the official CFAI readings so far, and I see no reason whatsoever to displace these as the core part of my studies for the exam. I don’t want to be negative; if it works for you, by all means use it, but I’ve worked through some Schweser, and I have a couple of complaints about it:
1.) Those “professor’s notes” are just a little too cutesy and irritating for me. If it’s really so important, then by all means make a big deal out of it in the main text, not in some side note. Otherwise, I just want to learn the stuff, and I don’t need any “hat tricks” or other fluff like that to distract me. Just a pet peeve, but come on, I’m not in grade school anymore.
2.) I get the feeling that some of the practice questions are not as well posed as they might be, and that not enough care was taken to ensure that the right answers are really right and the wrong answers are really wrong. Probably better off for the extra practice, but it’s important to get these things right for the exam.
3.) I just don’t “get it” the way I do when I work through the official curriculum. (Probably because it’s new to me, and I really do need all the dry, boring, gory details in order to “get it”.)
Level II is definitely reality check time. It’s hard, and I’m going on the assumption that you really have to know it, and get it right in order to pass the exam, but you have nearly eight months to check your reality, and I have every reason to believe it’s doable. Six months to go through those six fat books, and then take a practice exam to see what didn’t stick. Review, then another practice exam closer to the real exam. Just pace yourself. Read a half hour every morning with your oatmeal and coffee instead of checking the financial news, and another half hour every evening. Put in a little extra time if you’re in the mood, but get some exercise or do something else to relieve your stress if you’re not. Just get a routine going, and stick with it.