I'm finally coming over to second edition after holding off on it for so long and I heard the Abomination Vaults is the best AP for starting with 2e. However, with the hardcover coming out, I don't know if I should hold off until its release to grab it or just grab the 3 PDFs. Especially since I've heard nothing about if the hardcover has any updates to the campaign.
Just wondering which I should go for. As a side question, do I just need the Core book and Bestiary 1 for this AP or does it require some other books?