Google is king of the search engines in the United States. Google ranks websites according to algorithms that are changing all the time and while I can't tell you exactly what they are looking for, even Google insiders can't tell you exactly what they look for, what I can tell you is that claiming your google listing will help potential customers find your business in two ways.
First, once your google listing is claimed, your business information will show up on the right side of chrome browsers, showing your hours, address, reviews and even a button to link to your site.
The second positive impact will be a bump in your ranking in organic (not paid), local (potential customers searching while near your business) search results.
Definitely go for it. It will take about 20 min to do the basic information but you can take more time to add pictures, hours, and business details too… I recommend scheduling a couple hours and just get it done!
CLICK HERE for step by step directions from Google to claim or create your google (for business) listing.