A guy I met at a World Fantasy Convention years ago told me that he bought every copy of this book that he ran across. I'm pretty much the same way, which explains why I have this SF Book Club edition.
I first read the book when it was published by Gold Medal, long, long ago. Hard to believe I was so young. Hard to believe, too, how much this novel impressed me. I've read it several times since then, and I continue to enjoy it.
You probably know the basic story, even if you haven't read it. As the result of a plague, Robert Neville is the last human on Earth, and he's surrounded by vampires. Every day he goes out to kill them. Every night they surround his house and taunt him.
I have no idea if the science in the book makes any sense. I didn't care 50 years ago, and I don't care now. What matters is that I still find the story powerful. I still get weepy during the episode with the dog.
I haven't seen the new movie version, and it'll be a while before I do, if, in fact, I ever do. But for me it was a pleasure to read the book again and to be caught up in the story.