In my opinion, an unfair rating is the one star given by another user. I reserve that for something that does not work at all–four or five stars are for those products that work so well I cannot think of anything missing. But each user has their own set of criteria for their ratings.
I think I gave a fair evaluation of the product. I cannot tweak Zoom enough to know if those tweaks really function on my production site. The defaults work, but I don’t like your default settings. So I do not know how to give more stars in the rating until the issues I raise are fixed.
As to price, I have a price point that I will pay for products for my website. I have paid for several premium plugins–none of which was anywhere near your price. All of them have provided significant support as I needed it.
You know what you need to do to make a profit. So you set your price. If you guess right and have a viable product, the market will reward you. If you guess wrong, you will see few sales.
I didn’t see much competition for this plugin. Lower your price and I believe you will sell many more copies of your plugin. Make the options page work for one set of icons and you will sell many more copies.
