What is completely missing from Wix is mobile responsive design . We shouldn’t have to create/alter/change the desktop version for it to view properly in mobile or even have a mobile customization page when building. Once you build your site, it should adapt on the fly to accommodate the 4 main screen sizes (the widescreen desktop monitor, the smaller desktop or laptop, the tablet, and the mobile phone). The Wix mobile phone editor and mobile phone test view was good back in 2012.
It’s also a must for every blogger to have his/her mobile optimized. I think a blog without responsive design isn’t a blog, because It loses a lot.