I completed TOGAF 9 Level 2 with a score of 95%. Yes, this time too it was ALL self-study (not just the study guide though :-)).
This time too time was not a factor at all, it took me just 42 mins.
Preparation was much tougher and required more number of iterations.
Well, it was mostly the TOGAF 9 documentation, which I went over ad nauseam.
But, I would say the clincher was the sample questions and answers which provide a sense of what to expect and how to analyze the question.