I am impressed with the product's ability to warn us whenever something is wrong with the system. It is connected with Active Directory and Exchange. Whenever there is anything wrong with NetApp, the solution will alert you to an event error, post which you can start to troubleshoot. 

One of the main features is the ability to run the block and file storage from the same system.

Snapshot is the most valuable feature.

The most valuable feature is the system manager itself. The system manager helps us to manage our NetApp server with a user-friendly GUI instead of a CLI, but sometimes we also need to use the CLI, because some features are not available in the GUI. Most often, we use it to create aggregates, storage virtual machines, volumes, shares (like CIFS and NFS), and also to present disks (from NetApp) on some other physical or virtual machine to perform several tests.

On the other hand, the GUI gives us fast (simple) configurations, simplified management, extensive administrative capabilities, unlocking the power of clustered Data ONTAP and also clustered scale-out storage.

In OnCommand Unified Manager, we can monitor the entire cluster as well as configure data protection through Unified Manager.