What are the benefits of having a Facebook blue or grey badge? Is it worth it?

In one word? Yes! 

• Verified pages rank higher on Facebook’s Graph Search and on Google Search results.
• Customers are able to confirm they're connecting directly with the business(so it's particularly important if you've got a Facebook shop, or if you use Facebook advertising call-to-actions like 'book now', 'send message'. ).

Here are the steps to verifying your Facebook page.

1. Click Settings at the top of your Page
2. Click General and then Page Verification
3. Click Verify this Page, then click Get Started
4. Enter a publicly listed phone number for your business, your country & your language.
5. Click Call Me Now to allow Facebook to call you with a verification code (make sure you currently have access to the phone line you've entered!) 
6. Enter the 4-digit verification code and click Continue.

Hurrah! You're verified.