I dunno man, I mentioned The Passage before but I wouldn’t recommend it.
It’s like someone read a lot of Steven King and Michael Crichton, and really wanted to write a vampire apocalypse novel, and wasn’t anywhere near of as good a writer as really either of them (close to Crichton but not as imaginative or good at tension), and had some real delusions of epic-ness, leading to a lot of annoying flashbacks, vague dream sequences, sexy vampire nuns (please no), dubious vampire teenagers, incredibly boring confrontations (King has a few of these too), and a bizarrely intense 1980s writing vibe.
Nothing I’ve read that was written much after, like 1990 or so has this peculiar vibe, that a number of King’s books written in the '80s did, and a lot of books in the '80s generally did, and it’s not a good vibe. It is a kind of weird and disorientating vibe, but it feels very old-fashioned, and not in a good or period way. I think it’s to do with the age of the writer - he’s 56 - but that doesn’t explain everything because most writers who kept writing didn’t keep that vibe (fr’ex, Iain Banks had it in his '80s stuff, but even then to a lesser degree than here, and it went away later).
I would say if you REALLY liked Steven King and Michael Crichton, and want to see a vampire apocalypse in that vein (no pun intended), then it’s worth it. But that’s the only circumstance. It’s not a terrible, painful book or anything. It’s just not like, an amazing book or anything like that.
I had no interest in reading the sequels after reading the first one, myself. It’s a pity because initially it seemed like it might have promise and I do like a good vampire apocalypse (but most are dreadful).