Understand your customers- Through PPC you can analyze your competitor's choice ad, check which keywords they search more.
Get more traffic- Paid ad helps you get more traffic by showing your ad on the top of SERP page.
Instant results- You get instant result with ppc.
Get more leads & conversion- When you show on the top of the Google page then you will show many times to every user and there are more chances to get more leads and conversion