I bought 2Tb and next day exchange it for 3Tb simply because it works so well and I have decided to move all my files over and have my personal cloud 3Tb Setup was very easy, it works with all apps supporting WebDav like (office 2 HD, Polaris Office, Pages, Notes, .....) #1 change your admin password #2 after you have done with WD get a free account with freedns or similar service, check your router which one is supported. This is for accessing your WD trough WebDav. Port forwarding, I found it works better for me when WD is in DMZ zone and 8080 ports for http and 8443 for https protocols. To work with WD I found the following apps #1 WD2 GO - free app (so crazy you can rename and delete folder but can't create them) access files from anywhere also you can send a lint to your file via email like DropBox or Box very cool. #2 My WebDav - free app (will let you for with files and folders) #3 GoodReader - not a free app but you get more #2 plus much more other things. #4 Polaris Office biggest + it opens file on the server side so file has only one copy. Let me know if you have any questions.