I've read a lot about both courses and I used kaplan for my mcat. The step 1 live online lectures I saw were just like the mcat with poor quality lagging/freezing stream so I only plan on using their high yield pre-recorded videos. I do want to get a set of books though and they seem really similar but I am leaning towards getting the Becker set. All the other forums are mostly talking about the on-site classes or videos... I just want opinions on the books. Does it really matter?