This was a less stressful directing and writing gig for Francis, and his commentary reflects that. The commentary is split in two just like the film is split into two over two DVDs. So this gives you a nice break inbetween rather than listening to a 200min commentary.
Francis gives us more insight into one of the best trilogies in film history. He tells us about casting, problems that occured, locations, the writing and much more.
Although there are moments of silence in the commentary (which makes you wonder if Francis is coming back) its recommended for anyone who desires to know more about the film.

Initially, Coppola had no interest in doing a sequel and dealing with studio bureaucracy. He suggested Martin Scorsese for the job. The studio balked at this idea and accepted all of Coppola’s terms. Coppola also touches upon his love of improvisation and how he had the cast rehearse on location in Lake Tahoe. They improvised for a whole day in effort to get into character. Coppola is engaging and very articulate, delivering a top notch track that is well worth a listen for any fan of this movie.

I've never thought that Part II was better than Part I. Aside from the story of Vito coming to the USA & growing into a crime lord, the movie's always seemed like a trite rehash of the 1st (party, business dealings, root out traitors, massacre). That said, the commentary Coppola did for this one is excellent, almost as good as the one he recorded for Part I. His insights into the production of the film are always interesting & he keeps perfect pace for the 3+ hour running time, quite an accomplishment, I think. And don't miss the chance to listen to his commentary for Part III - it may be the weakest of the series but the track is worth a listen.