Smashing Magazine has an overview of eCommerce platforms, with calculated “Customer Satisfaction” ratings. WooCommerce scored a 90% (#4 on the list). Steve Benjamins writes that according to feedback its pros were customizability, and the strength of the plugin and broader ecosystem. It’s primary listed con was the learning curve and likelihood for needing development help.
It’s odd to me the author didn’t list any cons for Shopify. While it’s a bustling and popular ecosystem, it’s not without flaws; and I’ve heard that directly from Shopify store owners. Either way, this is a big list of eCommerce solutions and at least worth scanning.