Personal Cloud - getting the right one


I’m after a personal cloud storage system that I can access between Kenya and the UK. I’m looking at the more easy to use ones as I’m not techy (the WD my cloud). Can all personal cloud systems be accessed from anywhere in the world?

Also, can I easily move it to a new wifi connection so that my laptop can access it from different homes? (i.e. It would be in my home when I’m in the UK and at a different UK address when I am away). I also looking for Personal Cloud video to know more about it but,did not find much.

And, how easy is it to access the data from a friend’s computer or smart phone?

Any help will be appreciated.
Thank you.