It's a brilliant NAS drive, very quiet in use (I have it on my desk next to me and can't hear it). Very easy to setup, although remember it doesn't come with hard disks so you'll need to either have some or buy some.
At the time of review Asustor have just released a new version of the ADM software which has a brilliant new feature: EZ Sync. This allows you to have your own personal cloud storage service, a bit like DropBox or OneDrive.
A NAS drive is a great investment if you have a lot of large files, photos videos etc, it gives you a place to store the files long term without taking up space on your PC.
Note that I review products I've purchased and also products sent to me free of charge in return for an honest review. Also note I often make use of affiliate links to help fund my review work. #review