Description of your request or bug report:
When I’m looking at the results of a search in Natively (eg “books level 40 and up”), I get a page of book covers and titles with star rating, category, etc. I’m most interested in clicking through to an individual book page if it has a review (those are what give me an idea of if I might like the book, and I also just like reading reviews). It would be helpful if the presence of reviews could be flagged on the search results page somehow as part of the info for each book.
I don’t personally think number of reviews is as important as reviews yes/no, if the former is more awkward UI visually than the latter.
(You can sort by number of reviews, but that doesn’t help if you wanted to be sorting by some other order.)