As usual the critics have no taste, and their opinions don't match up with the general populace (aside from a few weird individuals who gave this movie a "1"...Yes, very much worth taking seriously...lol). This movie is better than the Disney version, not the other way around. Credit where credit is due, the Disney version has more realistic CGI (though the characters look more menacing in this version than in the Disney one, so that's a plus), possibly as a result of a better budget, though maybe not. Everything else though, is better in this version. It's much more faithful to the books. It is much darker and more mature than Disney's version, which to some I suppose might be a minus, while for the rest of us it's a huge plus. Depends on what you're looking for in the movie. Most importantly, the voice acting in this version is waaaayyyy better than in Disney's version (I'm really shocked and in disbelief to see that one reviewer thinks the voice acting in Disney's version was better, like, what?). Benedict Cumberbatch is absolutely perfect as Shere Khan, and blows Idris Elba's performance, which was already very good, out of the water. Cate Blanchett as Kaa (who thankfully has much more screentime and relevance to the story in this version) is soooo much better than Scarlett Johansson that it's not even funny. She has a much more powerful presence.
Don't get me wrong, I like Disney's live action remake of their movie. It was good, and I enjoyed it. But this one is definitely the superior of the two. If you want to watch a darker and more mature version of the story without all the jolly Disney songs, give this one a watch. Personally I absolutely loved it.