As a revision guide goes these are really good - laid out clearly, gives exam advice, etc. I bought these last year for my AS revision and they were wonderfully helpful thus I decided to get the A2 ones as well. However, this year I found them less useful and hardly touched them in fact. It may just have been that for my Psychology A-level a lot of the chosen studies were different in the guide to those my teachers gave us. So maybe it wasn't the books fault as much as chance.
To any first-time psychology students looking to stock up on revision guides for your course I would suggest you keep this in mind. Psychology (and probably sociology) has a bazillion studies that your teacher could ask you to use which the revision guides may or may not cover. As my teacher would say - you can't do an A-level from just one book.