I don't have this DVD, but I do have the footage on VHS.
The backstage footage is cool ... Elvis' dressing room, footage of the TCB Band in rehearsal etc.
The Japanese version of the show is pretty straightforward, although there are several different camera angles on many of the songs which makes it interesting.
The DVD cover here mentions the intro of Jack Lord which, as you probably know, was left off the original release. The recent DVD edition of the special has the intro, but no camera shot of Jack. I would imagine that they would've included any image of Jack if it existed. I don't think this Japanese version has a shot of Jack, or I would've remembered seeing him.
If you can get this DVD at a reasonable price, you might as well go for it.