It's hard to critique someone's retelling of their life like it's just another novel, but as enlightening and fascinated as some parts were, there's this rushed element to it where details are brushed over to emphasise the end result. Even at the end, they set up life in Halifax, well, how? Neither of them had money to spare and the RAF made it clear he was on his own, how did their lives move over into british civillian life? How did they set up the house. Bits of information that I would say were important for an autobiography.
Some parts go into intricate detail to the point where it's almost unbelievable that Harry Smith has remembered it exactly so, but where the details may be appreciated, there's gaps.