If you are new to this whole coding thing and need a website ASAP, for personal purpose or for your small business, you probably should use this kind of service. It's easy to use. Just some drag and drop and bit of creative input and the site is ready to be deployed.
But if you want to be an expert on this field for the future, you should learn some HTML, CSS, JS. You can get a job with this kind of skills and you are not tied to a shitty service like Wix.