The new app design brings a flat look to an even smoother user experience. Adding new animations and transitions is something the we're not shy of as well. Another nifty update is their performance boost for devices who run older versions of Android such as a galaxy nexus or Samsung galaxy s2.
Overall this ui is something to adore but is still something that lacks a high resolution uploading ability that ios has to offer. Either way, instagram for Android is fresh and once again, enjoyable.
Here is a video u made going over the big features.