First off, I have to admit I never saw the theatrical cut of Prometheus (even though I grew up with the Alien films). From all the negative talk I heard about it, I guess I figured it wasn't really worth the time. In the end, I'm thankful I waited.
This edit was enjoyable throughout, and never once, did I spot a strange cut or transition.
It would be odd for me to call it my go-to version, because to me it's the only true version. Very, very well done!
This edit works very well as a film and was thoroughly enjoyable. There were some very clever edits, such as changing the moment David adds the black ink to the glass of water, and Severian's use of deleted scenes was superb. I highly recommend this edit.
The original Prometheus is an overall decent film but is very flawed, thus it's not hard to see why it's so heavily divisive among critics, audiences, and fans of the Alien franchise. Prometheus: Giftbearer reincorporates much of the deleted material to create a much richer, smart, and more satisfying and thought-provoking experience that works beautifully not only as an Alien prequel/spin-off but also as a standalone sci-fi/horror film. The footage added in makes the story, themes, and characters more compelling and much better-realized than in the theatrical version of the film. The editing is absolutely flawless. The additions of Peter Weyland's TED Talk and Elizabeth Shaw's video message to the Weyland Corporation really give the film much-welcome depth and make the events play out feel personal. Fantastic stuff.
As for many, Prometheus was a massive disappointment for me. Since then it has grown on me and now I can appreciate many things about it - still, it's full of flaws.
This edit not only improves upon many of the original film's flaws, but I believe "Giftbearer" is finally a good, standalone movie and I would gladly recommend it to anyone who hasn't seen the original or any of the Alien films.
This version has a much better linear and understandable structure than the original and looks superb. My only complain is that the audio has only 2 channels and appears to be clipping on loud moments.