Ann87

Hey there! I guess that the choice of this CMS in particular is dictated by the numerous articles on the net, which say that WIX is a great choice for beginners? In any case, look into the WIX application market. All applications have a star rating that helps to understand how popular they are and I think this will be enough for your purposes. If you still need advice, then you can take this plugin to publish reviews: https://elfsight.com/google-reviews-widget/.

I would recommend using Squarespace here as it's rather modern CMS.

Well, of course he can do it. But it won't bring him any benefits. Maybe it's better to share a link to this article on social media instead of simply copying the text?

White Hat SEO obviously?

How about more details? What is the type of business? What marketing tools are already being used? What results do you want to achieve? Too broad question that cannot be answered without knowing the details.