WD My Cloud 2tb worked for only 5 days, in which, constantly got disconnected from net and stop working, transfer files from USB device was slow and tortuous, took me about 12 hours to transfer 320gb and almost 18 hours to add extra 500gb. Not to mention transfer files over wifi, about 2mb/s using a class N Huawei Router.
His last day of activity, got restarted several times, then got frozen with intermintent yellow light, after that couldnt bring it back to normal operation(4 sec restart/40 sec full restore) (change network cables, using different adsl routers), tried this for almost 2 days, with no signal of recover access or functionality.