Absolutely. You could say the ideas are well presented or it provided a contrast that clarified your own thinking. But, if someone asks "What's your favorite book?" and you say "The best book I've ever read was Atlas Shrugged in 8th grade. Changed my life." then... come on. You either like it or are quite the tricky communicator.

"Someone dropped it off a bridge, hit my abusive step-dad and killed him dead. Soft spot for Ayn Ran ever since, beliefs aside." That's someone I'd want to be friends with.