I want the module to display the ratings summary, as it does at the top of the main reviews page. Using the Summary Board does this, but the styling is pretty ugly TBH.

Reluctantly, I tried the embed option. It too has issues. Firstly, I only want this site to use it - I don't want it available for everyone else to embed. Secondly, it is headed up "Reviews",  which is unnecessary. Thirdly, the title is in H1, which is a gigantic SEO mistake.