When my father was young, he read this book over the course of one night: it scared him so much that he could not go to sleep. Thankfully, this book did not cost me a whole night's sleep; but, it did send chills up my spine. The reader is confronted with evil incarnate in the figure of Count Dracula, and Bram Stoker's storytelling keeps one's eyes glued to the page. I found the diary style of the beginning a little slow, but it becomes a true page turner once the Count carries the evil of vampirism into England.
By the way, it's hard to beat Oxford University Press. Their editions include copious end notes. So, one always comes away from reading their publications both entertained and more educated. This edition is probably the best way to enjoy the tale of Dracula.