I've used Dot-point, i've even bought the whole series for the three main sciences. I would say that, although its not
bad, its not
good enough for you to spend your time using it. Its better to summarise your textbook or do past papers. I would say past papers are god when it comes to study.
Allow me to make an important distinction though. The 'Dot-Point Biology Investigations' is an excellent book. It covers all points in the third column of the syllabus (i.e the pracs). If gives you info, gives you a guideline, some questions and gives you suggested answers. If pracs are your weakness, I highly suggest you use it. The book also fulfills an important niche in the range of biology textbooks- most bio textbooks out there don't go into detail about pracs, or don't talk about pracs altogether.
Edit: As it as been mentioned above from Brontecat, it is also useful to spilt 2-3 papers (after you have done them) into topics, that way, you can know where's your strength and weaknesses.
There's a book called Creelman Biology past paper book, it's sorted out for you already with a few past papers sorted into topics (there's a new edition every year) but I'm not sure if the answers and that great though.
Good luck with your studies!!
I've used Creelman biology and also Success One past papers. Let me say one thing: Creelman Biology is GOD. Its the best darn book for biology out there. Everyone needs to get it.
It sorts out all the past questions in syllabus order, so you can use it instantly from the start of the year. The answers are really succinct, really detailed and even provide marking criteria.
Compare this to Success One: questions are sorted by paper, the answers are shit and don't even have marking criteria.
EVERYONE NEEDS TO GET CREELMAN BIOLOGY