opal drive ain't no cloud storage. it is for file transfer between users and as far as i know it's functional but it's kind of user-unfriendly in it's stage right now

Nothing more to add.
but i think there are possibilities too make it a working cloud service. i'm no coder though i don't want to speculate about this too much.
Me neither

In fact Mario012 and Lumeire, We don't want to speak too quickly anymore, specially about main development (and main future one) before being 100% sure.