I'm going to go back to it after the New Year when I have a little more time to dedicate to it. I don't want to try to deal with it on a Sunday when I know I won't finish it before work starts up again.
I feel no guilt about or need to justify abandoning books unread. I try to give every book 50 pages (20 minutes for audiobooks). Life is too short to spend it reading books that I don't connect with, and every book is not for everybody.
I guess that's fine for people to whom books = brussels sprouts. I feel a little sorry for people who will only eat brussels sprouts and never indulge in chocolate cake. They like the smell of their own smug.