I'd owned this book for more than a year before I finally listened and it was one of those books you could doze off while listening to and not really mind. Much of what other reviewers have said I agree with, that it can be a bit repetitive, sometimes snobbish, but I thought he wound up the story in a very satisfying way. As the title suggests, the narrator acknowledges his own limitations while exposing those of others, which is endearing (see Salman Rushdie's Joseph Anton for just the opposite). I'd say read over all the reviews and decide if it suits you, then don't expect too much and you may enjoy it!
I would rank Past Imperfect about midway. It had an interesting story and I loved the behind the scenes look at that period in Britain, but the subject matter is an anomalie for me since my current reading focus is Fantasy books.
One of the most memorable scenes for me was when Damien Baxter passed away. The narrator had learned more of Damien's background story by then, which made his last words more poignant.
The same scene.
Villain or Victim - who is the real Damien Baxter?