Great novel. Does not read like it was written 121 years ago. Genuinely terrifying in parts.
Suffers a bit in the middle as the characters run around London, and I got a little confused as to what they were doing. It turns into a bit of a detective story. I got the main gist of what was going on, but a reading of the Wikipedia summary afterwards showed that I missed some subtleties.
Still, a great read.