I had used gnome3 for a while to switch from unity, but I am sure my productivity is lost when working with multiple windows and I also felt desktop realestate is reduced. I am not sure why I felt like that, now I switched completely to Mint with connamon and I feel much confortable both in productivity and desktop space.
I like gnome3 very much it's more modern, nice concepts, etc, but they should have made the migration such that the essential desktop feature is not lost. After all desktop are ment for desktop not mobile device, IMHO they should have differnt version(profile) (say extension sets) for desktop and mobile devices
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