To begin with, I am an A2 AQA history student who took this exam last week. This book has been essential to my study and it contains a comprehensive history of Britain from 1945-2007, outlining clearly the economic, foreign and social policies of each significant period (e.g. 1951-64, '64-79 etc), which is brilliant for creating essay plans and for general revision.
There are two problems however that I've found with this book:
1) A minor one is that they split the Thatcher rule into two chapters, covering most of her time in office in one and then just the Poll Tax and a conclusion in the other. Thus, partly due to my own fault, it's easy to overlook the Poll Tax during revision as when you read the predominantly Thatcher chapter, you fall into a false sense of security that you've finished her period and thus miss out issues such as the Poll Tax in subsequent practice essay plans you may create.
2) The bigger problem is the bias against Tony Blair. Yes, he is a controversial figure and one can raise issue with a lot of his policies, but the book is overwhelmingly bias against him, to the point that even positive things that Labour did e.g. raise employment by around 2.5 million, the author finds fault in and somehow turns this into a negative aspect of Blair's time in office. Oddly, and perhaps thankfully, the author manages to balance the most controversial aspect of this period, the Iraq war. If you're taking an exam and you believe Blair will pop up, then try and find at least one other source of information which balances this negative review of him.
There is also a running thread of Euro-scepticism in the book, which basically criticises Britain's increased involvement in the EU. Additionally, at the end of the book the author satirises environmentalism and portrays it as a deluded idea, and writes a definition of the BNP as people who have 'personality disorders'.
Aside from these issues, this is a brilliant book (and is on the whole, balanced) and should be the Bible of any A Level History student taking an exam for this period.