If your customers are searching for your product or service online, Adwords will put you in front of them tomorrow.
paid Traffic to your site
Real people are searching for what you are selling. With Google Adwords you can put your services in front of them.
The goal is to fully understand what your audience is looking to achieve at each stage of the marketing funnel. Give them what they are looking for and you'll see traffic to your site.
Gaining new customers starts with traffic to your site.