I paid for it for my daughter - it is a silly set up and she found it frustrating. She spent several hours on it and thought it was rubbish - felt like the time spent on it was wasted and would have been better spent on the Princeton Review book. I believe the
PR book was quite helpful for English (she got a 35 on the English section in April and has never considered English her best subject). The science is such a bizarre section - I am not sure any of the books really help with it.