FAQ page: Good or bad?

I love FAQ pages. When I first land on an interesting/new website that offers services, the first thing I look for is the FAQ page. It saves me time and usually answers my basic questions. It also allows me to further grasp the basics of the website in a couple of minutes. Ultimately, it saves time and even allows for lead generation. FAQ pages should be used to complement your product/service.

Other opinions are that if you need a FAQ page, it at means that your product failed to have a friendly enough UI. One should invest time making the site clearer, rather than working on a FAQ page. It takes the same amount of time and the time would be better spent.