Not happy with what they used for HDD on 12TB edition. They used ST3000DM001, and it is terrible choice.
Hidenori Inagaki, Amazon
12 December 2015
Summary: Good devices, and I am very happy with NAS server it self, but Not happy with what they used for HDD on 12TB edition. I got this one for client's practice to back up their server. Operation of this server is pretty straight forward.
NETGEAR Customer Service Terrible - Online Backup Storage Service Very Expensive
John Daigle Jr. "jdinjax", Amazon
13 October 2014
Summary: Netgear's Customer Service is among the worst I have ever experienced. I purchased this product last week. The product appears good so far. However, I was extremely unhappy to learn that in order to get the online backup service that I read about in the product's advertisement it was going to cost...
Summary: The unit itself is relatively simple to set up. For a home user or corporate user who have IT personnel onsite, this is a reasonable system. That is until you need tech support. Mine had a drive fail inside of 30 days of putting it into use.
Summary: Extremely difficult to get it to mirror with the second unit. The instruction were vague at best and there was nothing better (at least that I was able to find) on line. One unit set up pretty easy, but the second unit spoiled the experience.