Generally the My Cloud line (not the My Cloud Home line) are network attached storage devices. This subforum generally covers the single bay/single drive My Cloud device which may no longer be sold to consumers. The multi bay My Cloud models are available as is the My Cloud Home line is which a different device than the My Cloud line.
For remote access one is generally limited to using the WD mobile apps or MyCloud.com web portal (and some WD software). So check out the features of the WD mobile app for your device along with read the various comments and issues with those mobile apps and you’ll be better able to decide if the My Cloud line is something that can fit your needs.
The following subforum will have additional discussion on the WD software and WD mobile apps.