Professor Burrows' book consists of chapters enumerating the events of Handel's life during specific time periods, alternating with chapters analyzing the music he wrote in those periods.
The biographical information is really more of a concordance of other Handel sources than a true biography. Much of the content is commentary on the origins of some particular (tiny) fact, and endless discussions of inconsistencies between one source and another.
What's missing is any sense of the historical context in which the events of Handel's life took place. Or conjectures/inferences about why he might have made the choices he made. What's missing is any kind of narrative flow.
I get the sense that Burrows is writing for other Handel scholars rather than for a general audience. The result is that his book reads more like a train schedule than a biography.
So, if you're looking for an exhaustive (and exhausting) academic reference work, this is the book for you. If you want something of a more general nature, you'd be advised to look elsewhere...