If I did things again I wouldn't fork out the money for extra notes.
I bought the Pooleys Key Facts books and soon realised I didn't need them.
Funnily enough, they're just a list of key facts that you could make yourself as you revise your notes.
I went through Bristol for ATPL(H) and found the combination of their notes, the brush up course and the feedback was more than enough to get me a first time pass.