Last 4 Days and Book 6

I initially really struggled with FSA however spending the last 3 days on it and going through each question on book 6 I feel much better!! I have seen a lot of discussion on here re CFAI and Book 6. Can someone please advise if the above is sufficent? Is book 6 equivalent to CFAI easier/harder…? Thanks

some book 6 exams/sections are harder/easier… i find its not very consistent… like, one exam will have really easy FSA questions, but really hard ethics q’s, whereas another exam will be totally different… but they say CFAI is going to be more realistic, so i’d try to do them (i’ve only done the first CFAI exam, so i cant really say)