It’s entertaining, especially if you like those isolationist sci-fi stories.
It’s a little creepy, with some suspenseful scares — if you hate things jumping out at you then you probably won’t like that aspect of the film.
The shots of empty New York City are amazing.
I’ve been told that the ending is not the same as the book, so looking at the film that way, I’ll have to equate it to the same way that the movie Logan’s Run is different from the book. They’re both worthwhile and can stand on their own, but don’t try to compare them directly to each other if you don’t want to be disappointed.