I'm sure the question you all will be asking: Is this two movie set the same as the original two blu rays? If so, why buy the original, right? Well the answer is: No this is not the same as the originals. This is bare bones blu ray. Both movies are on one disc. You get the movies in 1080p and audio in your choice of English DTS-HD or Englsh and French 5.1 Dolby Digital. Subtitles are in French only. That's right: not even English subtitles. I suppose they figure that if you want to listen in English DTS-HD you can view the French subtitles. No other extras whatsoever.
If your only concern is watching the movies in HD with HD sound you won't go wrong with buying this disc. For me, however, I think that one of the attractions of blu ray is the extras. For instance, Kill Bill Vol 1 has an extra performance by the 5,6,7,8's that I have watched several times and played for friends. Also, there are times when I turn on English subtitles to clarify something that is being said. The originals also have subtitles in Chinese and several other languages. My wife is Chinese and likes to watch with the Chinese subtitles on. In fact we buy some blu rays because they have Chinese subtitles.
We don't yet own Kill Bill Vol 2. I bought this disc for that reason and out of curiousity to see if it's the same. For us it's a waste of money because we will quite likely buy the original Kill Bill Vol 2 at some point in the future.