I was optomistic the first time I took it right up untill I got the results (april 2010). The second time I wasn't as confident mostly because I felt even though I had studied more I still had to guess on the same amount of problems.
Third time (april 11) I studied in a different fashion (long days on the weekends, this method has always worked best for me but I wasn't really able to do it before my first two attempts). Anyway I thought I did pretty well on the morning section, however the afternoon left me preturbed because I ran out of time and had to more or less blindly guess on about 5, this was exacerbated by the fact that when the proctor picked up my exam answer sheet I clearly saw I had failed to bubble in one answer (#39).
The tought of not passing by one answer drove me nuts for a few days but I got over it and thankfully my spring has been very busy so I was always distracted up until 8:57 am yesterday when I got an email telling me my results were in. Thankfully I passed.