Absolutely fantastic, and I would greatly recommend to friends. Andy doesn't stop at the standard, dull explanation, he explains the origins of formulae and observations which makes the wider understanding of the subject so much easier, and will review the topics until you are ready to move on. He was helpful not just in physics, but in mathematics and further mathematics to push me along closer to my exam while I was worrying. He is the reason for my A* in physics.
14-08-15
