Personally, as a Tekken fan, I see it as a great value for $20 bucks. If you like tekken at all, especially around the tekken 3/tag era, this is a must buy if you don't have a ps2 and tekken tag or a launch ps3. (Tekken Tag doesn't run well on the 80gb backwards compatible ps3).
The package includes an 80 page hardcover artbook. 50 pages are dedicated to the movie. It also includes interviews with the makers on how amazing this terrible movie was thought up. 20 pages are for tekken tag 1, and 10 pages for tekken tag 2 prologue.
Tekken Tag 1 is a fully unlocked port of the ps2 game.
Tekken Tag 2 prologue is a tekken tag 2 demo which includes Devil Kazuya (can't transform into Kazuya), Devil Jin, Alisa, and Ling in their exclusive costumes from the movie. Pretty much this was exciting news back then, but not anymore. Although it's still pretty cool looking at the exclusive costumes in game.
The ps3 home content was supposed to be a few tekken shirts and ling costumes with alisa's costume as well. Alisa's costume included an exclusive rocket punch animation.
The real star of this package is the soundtrack. They are not complete soundtracks, but it was nice to hear the tag 2 songs before the game came out. First disk is dedicated to tekken tag 1. All the songs are the console version, so don't expect the arcade mixes. The second disk includes most of the stage music from the second game.
The movie is the 3d/2d version. blah blah, hardly any special features. One thing that people might not appreciate is you need to install the games/demos if you want to play them. And even so, you still need the disk.
For 20 bucks, it's a very good deal. I bought it when it came out for 60 bucks, and even then i thought it was a great deal.
PS. no steel case