Who doesn't like aesthetically pleasing books? But it's not a deal breaker for me if the design or even formatting is off. I've read self-publishing books (e-books mostly) that still got the "this is a preview.indd" in them every chapter, or that have a cover someones teenage kid made in blender. Some of those were awesome books, just very badly designed. Yeah - the formatting can be disturbing, but I overlook it if it's just a minor problem. As long as it's readable enough to not distract from the story too much, it doesn't get an immediate downvote from me.