Summary: Easy to setup and use. Synology frequently updates their OS and the alerts come quickly. I will also add that their tech support has been excellent the few times I have called. They take the time to review the concern and aim me at or fully explain what to do.
(running for 2 weeks now) this has worked great. I added this to the 8 bay Synology ...
Mark Varni, Amazon
17 February 2015
Summary: So far, (running for 2 weeks now) this has worked great. I added this to the 8 bay Synology diskstation and I immediately added in 3 new drives with 1 hot spare as I'm running RAID 5 across all drives. Setup was easy and seamless.
Pros: Connect the power cable and the esata cable and your done. That simple? 99% true, but if that 1% means organization of your preferences then it's a home run and done simple concept. Loaded my box with 5xWD Red 2TB and purrs like a kitten using very little power, little to no noise and zero issues.
Cons: $500 is steep for basically a box for drives that doesn't do anything but link to my 1512. Or put it like this. When 5x WD 2TB Red RAID HDD's are cheaper than the box they are in, then Synology needs to look at its price point and think again. $1000 for 10TB expansion? I can build a rack box for ...
Summary: Have owned 2 of these -- one to expand a 2-bay chassis and one to expand an 8-bay. The first one did not survive a fall from desk height onto a hard floor. Should it have? Would any NAS product?
Summary: Synology is quite, frankly, the Apple of NAS - everything just works and it constantly delights you by going above and beyond. This is an add on to my existing 8-bay giving me a 40TB server. Incredible.