I wasn't looking for sharing. It's just for my use. But I felt that it was really cumbersome plugging and unplugging the USB cord each time I wanted to write to it or read from it. I guess I don't really need to be fast because I can be patient and just wait until the transfer is over.
My laptop use isn't stationary, so I like to use it while on the bed, then move to the table and sit, etc.
I guess if I had a stationary computer station (a treadmill desk or a standing desk) and never felt the need to unplug and plug several times a day I wouldn't need the My Cloud.
Also I guess one disadvantage of MyCloud would be that I'm guessing you wouldn't be able to boot up an OS from it (bootcamp?) But then you can use Parallels with Mac OS.