As for Crash Reporting, you'll surely like this feature as you want to know about the problems with your app right away. From now on you have this opportunity. You get actionable reports, which serve for diagnosing and fixing issues in Android and iOS applications after they have been delivered. The great thing about it is that it cooperates with Audiences feature (you remember it, right?) and Firebase Analytics. Therefore, you can not only see if the problem takes place on a particular device to prevent it in future but also discover the affect this problem has caused.