When I see a book mentioned enough times in contexts generally aligning with my tastes (also depends on how much I trust the context: an ad will have near-zero impact, a direct recommendation from a close friend will have high impact, for a review it depends), I decide to give it a try.
As for your situation, you'd benefit from having a reviewer with good taste and solid reputation. It might be quite a challenge, but it's probably worth it once you've made sure your book doesn't suffer from trivial flaws. Or, if it's just a hobby, you might choose not to bother, or to have more practice first.