It was mostly great. I wish they'd have brought in the original voice cast for adult Simba, and then for scar. The new cast were nowhere near as good, particularly scar. The rest were excellent but as I said, scar was a let down. Having James earl Jones reprise his role as mufasa was probably the best thing they could have done for the film, he is what really made it good. The music, aside from one piece, was already very good if not better than the original. There were some parts of the script that were unnecessary and clumsy. Stating the obvious almost.
Visually, it was amazing. An absolute delight. Musically, I didn't like the new song. It took away from the movie more than anything else. And again, I feel that the voice for scar was a complete and utter failure. Had the original voice cast for Simba and Scar reprised their roles, I think the movie as a whole would have been ALOT better.
Looking at scar, I just couldn't help but see so many similarities to Shere Khan from the jungle book. I don't know if that's just because of the disappointing voice cast, but that role was just overall disappointing.
Overall, I'd give it a 7.5/10 well worth a watch