Ok, so lately I have been looking to upgrade my current setup to have more space for movies and also have the safety of a harddrive failing. I can't decide whether I should get a 4 bay Drobo or the Owc Mercury Elite-AL Pro Qx2. I have heard about the Drobo being slow, and taking a long time to transfer or rebuild harddrives, but have heard nothing from the OWC one. Does anyone currently use either, and could you tell me how good or bad it has been for you? Thanks.