Aside from definitely bad things, there are also partly-good ones. There are some details, playing a big role both in anime and in live-action. At first sight, it is easy to mention the setting. There is a feeling that this cinematic world is not some new technological space world, but a settled world in which people have been trying to "carry their weight" for a long time. Throughout this world, we can see that almost everything has been used for a long time. The weapons are shabby, the metal curtains on the Bebop won't close without a good tapping on the control panel to make it happen. Sounds strange, but such details give us a deeper understanding of the surroundings and a feeling of realism that makes us believe in this world, believe in all the stories told on the screen. The most beautiful pieces in live-action are space scenes and score. Space scenes are slow and truly magnificent and what about the score? It is hard to explain, because words are powerless here, better to listen. There are a lot of pieces by Yoko Kanno, a genius Japanese composer who created a distinctive score for the anime and then the analogs of the original compositions to support the score in adaptation.
But here is the core problem of adaptation — such details were already included in original anime, and it worked there much better than in live-action. In addition, when there is an original work to rely on, you should not just copy the material and the ideas, what was done in live-action; but add something new instead, something changed by your own understanding. That is the true sense of creating things.
In some way, the problem lies on the surface. It seems that live-action series performs the function of a movie adaptation of a movie. Why? The arguments are countless. What for? One big question to the authors.