Eh, maybe? It's part of the fantasy-world-is-real trope. A spiritual successor to Narnia, but with adult characters. Or a predecessor to something like The Magicians. If you like these sorts of books, where the real world is part of the setting, then it may appeal. It's almost Isekai.

Honestly though, I've forgotten most of it. It's a "read once" book.

Read "Fred the Vampire Accountant" instead ;)