Yeah Janis was the first to get the game functional in Vavoom, followed by Kaiser's svstrife and then ZDoom. Before all that, a guy called Gokuma did a lot of work figuring out all of the thing types and linedef actions, and made a version of DeHackEd for the game which was a big help to all of the above. For Chocolate Strife, though, we basically started from scratch and reversed every instruction in the program. We did reference earlier ports to see if they were in general agreement (though sometimes we found that in fact *they* were wrong or had missed a lot of details), so some credit is due regardless.
I have to agree; the cohesive world aspect is even stronger than what was in Hexen and really pulls you in. You're given reasons to invest in the characters that go beyond "some evil guy needs to die, see to it." The writing is really good and the actors all nailed it, like your original review pointed out.
And that's also true. I have many copies of the game from various sources just in interest of having every version that was released and only the legit ones have the video intact. Extracting the Strife portion of it for SVE was a lot of "fun" too by the way... those old AVI files are not standard by any stretch of the imagination. Every tool we tried threw some kind of fit, be it with the audio, or the frame rate.