I have been long time fan of western digital media storage devices. I have used external and internal both media storage devices from western digital. There is a whole stack of product available from western digital in media storage. I have used cavier blue 1TB and passport 1 TB in external storage. Best part is you rarely need to visit service center of western digital because after usage of over five years I have never faced not even single issue with wd products.
Apart from that their service center and service is so good that you will rarely feel troubled this is my personal experience. Their customer support is just too good and thats the thing which makes them leader for consumers in the segment of media storage. Blindly buy wd products.