Pros: I'm sure in some applications it is a cost effective way to store data.

Cons: This drive uses SMR technology that wasn't mentioned when I bought it, but the news came out a couple of days after I received it. Luckily Newegg took it back for just the cost of shipping. Disappointed that WD would use SMR technology on this type of drive considering all of the negative issues associated with SMR and NAS.

Overall Review: To be fair, I never installed the drives. After reading the stories on SMR and some of the nightmares on the Synology forum, I wasn't going to risk setting up a raid on my NAS to have it fail or have problems in the future. This drive is labeled as a NAS drive and should work without issues with the majority of NAS systems.