The new UI of Google maps has a lot of the look and feel of the Google Earth mobile app. It might take a few minutes to get used to it, but generally it is very intuitive, fun to use and has a number of new features, such as new 3D-buildings (select cities only so far), photo slideshows and a very slick search/information panel.
In case users prefer (temporarily) the old Maps, the settings allow you to change back to the classical view. Google MyMaps can also be found in the settings menu. MyMaps has not switched to the new view (yet).