Pros: Easy to use QTS OS that gives you complete control of your device from anywhere. Great features that work as designed. I use this device inside a Windows domain along with apple products and it works each and every time with no issues. Hyper-V and VMware work like a charm. Mobile apps that let you manage the system and its contents from anywhere. Ability to view and share any media type to anyone, anywhere at any time. I stream my movie collection to my Android from anywhere - have not used Netflix since this went online. Backups. Thank you for giving me the ability to retain the data once its deleted on network drives (can be configured for how long), backup of the entire OS configuration and simple replication to external devices / cloud space.

Cons: Mobile apps still can use a facelift and some tweaking. Combine the half a dozen apps into one since they all serve the same basic purpose. Price - while the OS is great the hardware is not exactly screaming but is more then sufficient for what's it designed to do.

Overall Review: Final Grade - Solid A. Setting up is easy. Upgrading to larger drives without loosing the raid or data is simple. For IT folks who are looking to merge their thirst for IT knowledge (Hyper-V, VMware, domains, NAS ...) and simplicity of storage and media unit all in one - this solution is it. I downsized my entire configuration to this, 1 host each for Hyper-V and VMware, switch and router. This provides the storage that is truly flexible in every way. While many features are available through other sources - this is great all in one solution that easy to manage