If you enjoy a good scientific puzzle, you'll love this book. If you enjoy history and biographies, you'll find it fascinating.
I found myself being enthralled by the "thought experiments" that characterized Einstein's work, plus all the historical events and controversies of the day that impacted on Einstein's life. I can thoroughly recommend this book.
Near the half way point, the narration stops being linear and often skips many sections at a time, sometimes even entire chapters, only to come back to them at a later point. This makes it impossible to follow along as context is skipped. Don't waste your money! Unacceptable quality.