This was a mildly interesting book about a mostly boring person. Marc Szeftel was perhaps a good, if not prolific, scholar. But as a person or a personality and especially as a creative force, he was nothing special. It's a little sad to realize that the only reason his life is in print at all is because of his proximity to Nabokov (whom he was obsessed with as his private journals show). Unfortunately, Szeftel didn't have anything worthwhile to say about his colleague (it was mostly career and life envy) and we unlucky readers don't much benefit from reading his words.
That he served as a model for Pnin (Nabokov's squirrelliest novel) is unmistakable as the author makes very clear. For that, he has earned a place in literary history. But, as for recommending this book, there's no there there except for the Nabokovian nuts like myself or, like the only other person to have reviewed this book, for family members of Marc Szeftel himself.