The Internet has created an entirely new world of opportunity when it comes to marketing, as anyone can set up their own website and create unique content in just minutes. However, creating unique content and having your own website are not enough to build up brand awareness; you have to have the right tools to help you market your business and turn more visitors into customers.
Many people use a plugin because they're scared of complicated code or CSS. Sometimes this is a good idea, but only if you need the functionality that it provides and if it is skilled in its implementation.