Over 1B users installed the app and the latest update was released on Mar 25, 2019. This application is not recommended for users under the age of 14, it has been rated 4.4 on Google Play. Keep in mind the important moment: ads are a part of Instagram and it provides in-app purchases.
The statistics reveal that the app is popular mostly among Samsung and LG users.
From the users' point of view, you can benefit from the strong points of this application which are the great UI and good performance. As users see it, the obvious drawback of Instagram is far too many ads.