Can you somehow have a single login instead of separate ones for your wix site and store when you integrate the 3rd party Ecwid store? It seem to suggest that this is possible, but I cant find anything on how in implement it. More on forum.wixstudio.com

Currently, users are facing issues accessing the store control panel through the Customer Portal or Website Builder. We are aware of this issue and are working with Ecwid to fix it. Workaround: users can log in using their email and password at Login | Ecwid E-commerce for immediate access. More on community.sitejet.io

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So, I can't comment on the "free for 10 product and no processing fees" BUT. The job I left (just as COVID started to take off in the UK) was using Ecwid. I HATED IT. But it does do its job. In terms of processing fees, I can only apologise, I honestly don't know on that one. From my personal experience, Ecwid has poor poor support. They limit live chat to a higher plan, and even still the information they can give you is very limited. I was on the Live Chat a lot, too. My boss' website was doing around 340 - 460 orders a day (varied a bit, as it was volatile with COVID and the news coming out).... Ecwid goes down. It went down for us a lot. Their apps SUCK. A lot of Shopify apps aren't needed (I use max 10 on my sites).. but Ecwids are just poor.. and very limited The product page is a bare minimum. They allow you to have very limited amount of customisation (you have 2 hours development time if you want them to move things around for you.. and then it's $100 an hour) Now when I left, they had rolled out a little more ability around emailing customers (order confirmation emails), but it wasn't great. I use Klaviyo and Shopify. They have a site builder. It's very bad. Use it on Joomla, or Wordpress and intergrate them together Ecwid loads its catalog in its entirety, so there's a delay when someone clicks on your category links Ecwids Cart Icons will slow your website load speed down (using tools like GtMetrix and Pingdom will give you a good idea, when you test it) and for the positives.. It's not that expensive a month. You can tweak CSS reasonably easily, if you know how to use the developer tools in your browser More on reddit.com