The only downfall to this version of Ghostbusters, versus the previous DVD release, is that it is missing some of the special features including the theatrical trailers, subtitled production notes, and the video that went along with the audio commentary. It would also be nice if there were more features, like the Ghostbusters music video.
On the plus side you get better video transfers for both films and on the Ghostbusters 2 disk you get an episode of The Real Ghostbusters cartoon, 'Citizen Ghost' and an episode of Slimer and The Real Ghostbusters cartoon, 'Partners in Slime'.
Included in the package is a scrapbook, which is pretty cool for a little freebie, but not very informative or archival, so don't expect much.
Overall, this is an awesome set and a great deal.
Ghostbusters / Ghostbusters 2 with Book is recommended by cwest