Pros: I bought 2 x 2Tb disks and placed them in a RAID 0 (stripe for performance), but no data redundancy. I was worried about my data, but I also wanted the speed from striping. A wonderful feature that the QNap device has is that you can setup replication jobs with Amz S3's cloud storage. The device replicates very well, with minimal setup. The only gotcha in this process is that your Amz bucket needs to be all lower case. Over all an amazing little NAS device. Lots of functionality, good speed (disks are the bottle neck as they always are), iSCSI, NAS, RDA support for VMWare Windows Server clusters. Great for home learning lab for VMware.

Cons: Sometimes disk provisioning can be a little slow, but I haven't been able to determine if the bottle neck is the QNap or the disks. Based on utilization being reported by the QNap I’m thinking this is a disk speed issue. The only issue I’ve found so far has been a problem with iSCSI LUN snapshots. When trying to create a LUN snap shot non of my LUNs were being displayed for snap shots.

Overall Review: If you're interested in setting up a home VMWare lab for learning and educational purposes this is a wonderful little device.

Thus far I have not been impressed with the seller. I ordered my hard drive on Feb 5th, I e-mailed the vendor on the 7th asking when my order would be shipped, they replied the next day saying that the order would be shipped that day. A UPS shipping label was created so I received a tracking number, but as of the 10th the item still has not been shipped. 5 days after placing the order and my item still has not shipped. Not impressed.... I'll update this review with progress.