The plot is off the original but that is ok with me. People are a lot more complicated now than in the 1930s. It deserves an 8/10 imo. The emotional struggle between the characters and relation to tradition vs hedonism soma and sober can be relative to individuals.
Another note. I would be interested to hear Mr Huxleys opinion on the inclusion of a few new aspects. He could be rolling in his grave or accept the changes as the overall story is being disseminated and able to make some people think about it and learn more.