Most people compare Wix and W-p now days everyone had droughts about choosing the perfect Content Management System back in the days however wix editor has proved its capabilities when it comes to look and feels on the site.
In the beginning there wasn't much designing tools on Wix but by the time Wix improved their editor with amazing designing tools that has capability of designing a strong and amazing Web design with high responsive if your problem was about the designing something next level like W-p answer is "YES" you can design something very professional with Wix.com. The key point here is the level of your designing ability and your imagination and how you are able to make it happened.
Check out the link bellow so you will understand and realize about Wix editor capabilities and what you can do wit the Wix editor. You can start from scratch and get designed or design by your self if you have the perfect idea for your website.
Very first step is to sign up for your free Wix account read more about how to do that from the below link.
Perfect Examples for Wix custom web designs