Quite good and helps you understand everyone's motivations and how they arrived at where they are in the first movie. A bit unfortunate it's missing the main two guys since it's a prequel and their characters are played by younger actors. The rest of the supporting cast are the same guys though and are nicely expanded upon.
Almost saw it in theaters since two of the directors were talking before and after the film...but those shows got sold out.
I liked the 1st and last parts a lot. The middle would have been good if it wasn't so long...and with gibberish translated into French, translated into Japanese, which you then read...it gets tiresome. All yummily bizarre.