The new experience ties in Google+ into Google Maps and business listings, plus adds Zagat reviews to the foreground.
As Google announced on their Google+ page:
Today we’re rolling out Google+ Local, a simple way to discover and share local information featuring ZAGAT scores and recommendations from people you trust in Google+.
From the new “Local” icon on the left-hand side of Google+, you can search for specific places or browse for ones that fit your mood. Clicking on any place will take you to a local Google+ page that includes photos, Zagat’s high-quality scores and summaries, reviews from people in your circles and other information like address and opening hours.
Google+ Local is also integrated across the other products you already use every day, including Search, Maps and mobile, so you can get the same great local information wherever you go.
Here are some screen shots showing the level of integration with Google+, circles, and Zagat reviews (note click on any image to enlarge):
If you have a Google Places result, continue to manage that place result in Google Places at Google Places. Although it seems like that will change over time and more and more features will be tied to the Google+ experience.
Greg Sterling as his review on Search Engine Land.
Forum discussion at Google+ Page.