I agree that the spirit of my site is closer to "a statistics site for products" than a typical review site. Adding more content, photos, etc. may help to remedy my situation, but I would feel like I was abandoning my original purpose. I designed the site with "satisficers" in mind, i.e. allow people to make a decent decision as quickly as possible. No frills.
Until recently, I worked for product review sites like Anandtech and Tom's Hardware, and I'm not equipped to compete with them head on. My hope was to create a new niche by using data analysis, which is more of my skillset: https://www.johnwdefeo.com/articles/amazon-review-analysis