I was sad to see the relatively negative reviews about this film as I found it to be incredible. The animation was outstanding and although the dubbing isn't perfect, i've seen a lot worse on Japanese animation dubs. The English voices fit the characters pretty well, although you can't beat the original Japanese voice and reading the subtitles. The storyline was great and yes it did feel a bit slow for the first half, but this only made the second half race forward at break neck speed and add to the drama and action, which I can only guess was the intention. I agree that this is probably the most visually stunning animation outside of Ghibli films and the level of detail is simply breathtaking. The extras disc is great, with well over an hour of interviews and featurettes that give a great view on the animators, directors and voice stars opinions on this film, as well as providing information on animation layering and other techniques. I also received some postcards, mini comic and thick book on film planning animations included with my box, but I'm unsure if this is included with this version or not, but my box is also the directors cut so I hope so. I have to say it makes for a wonderful overall package. Even if you don't get those additional items, this film more than makes up for it and you will own an amazing piece of Japanese animation that is already classed as a cult classic.
Feel free to check out my blog which can be found on my profile page.