True, it does not follow the book very closely, but it's still a very entertaining take on the story. Swayze was far better in the role than I expected. And Doody avoided the "silly woman out of her depth in the wilderness" portrayal most of us probably expected (cf. Kate Capshaw in "Indiana Jones & the Temple of Doom").
At any rate, it's amazingly better than Richard Chamberlain's awful pair of Quatermain flicks.
It is very reminiscent of a western in many ways. About the only thing I didn't care for was all the mysticism, but I guess that is part and parcel of the genre. Like "how can you have an African adventure story without witch doctresses and preternaturally wise wandering tribesmen?" Heh.