I agree somewhat that there are repetitive themes in the Creative Act, but I still found it incredible. I approached it as a series of Zen Koans. You can just pick up the book and start almost anywhere. I wouldn’t hesitate to recommend it to anyone.
Yes, it doesn't have to be read cover to cover. But some chapters could have been removed and "the work" would have gotten stronger. Ironic since that's a practice he champions.
I'd recommend "The War of Art" over "Creative Act".