Facebook is used by over 500 million people. This audience potential is pretty high, whatever your targeted demographic may be.Typically, ads on Facebook are run daily, and according to the model you've chosen; whether it be CPC or CPM, and are set within a maximum daily budget. (The maximum daily budget is a benefit because it disables the challenge of accidentally overspending.)
Overall, setting up a facebook ad is quick and simple , and as stated before there are two methods to go about obtaining traffic. These are Cost Per Click (CPC) or Cost Per Thousand Impressions (CPM). A great thing about these forms of traffic is your ability to choose a range of options when setting up your advertising account that can target ads specifically to either as direct or as broad of an audience as you would like.