It is a hefty box in every sense: 13 CDs, supplemented with two DVDs, accompanied by a gorgeous hardcover book and a variety of tchotchkes, including a poster that traces the twisted family trees and time lines of the band and, just as helpfully, replicas of legal documents that explain why the group didn't retain rights to its recordings for years…
To simplify my life considerably, I'm going to combine the "reviews" of all six Stage releases into a single entry, even though they were released individually. Also, to save a lot of time and effort, I'm not going to give complete track listings of the twelve discs, or do song-by-song reviews (hey, we're talking over 800 minutes of music here, give me a break). If you need to know the track listings, they're probably available through an on-line music sales site like CDNow, or an information site like the All Music Guide. There's probably a few other Zappa sites that list them as well. Maybe one day when I have the time, I'll come back and expand this section to really cover all twelve discs in detail. Until then, I'll just give some general facts and opinions, focusing on highlights and material unique to the Stage series.