A reprint of a defective apple book itself had a defect: dried blue ink on one page.
I emailed Apple Support at 9am this morning and at 9:49am I had a refund, plus the option of reprinting (and being recharged, of course).
Late last week I received a reprint of a viovio book, which had been differently processed that the first. It was better — not quite as dark, and the colors were generally better. While it wasn’t quite as good as the color tones from Apple, it’s a close second, and the service I’ll be using when I want options other than Apple’s one-size, hardcover landscape book.
Apple may be quick on the refund, but Viovio support wins on being personable. They’re pleasant, cheerful, and happily willing to help. I’ve uploaded another PDF, and they’re apparently going to try several cmyk and rasterizations processes to find out which produces the best result. Very impressive