First impression - a lot of work is needed to put Gnome 4.1 into something useful. The overall theme is ugly as sin. The new overview adds an extra mouse click if you want to browse through your installed apps, but again I just type which app I need to use. Now I'm going to see if I can get something useful out of the extensions to make a whole Desktop.
I see how people might see this and instantly think their peace of updates is gone, but that isn't really the case
unlike Windows, Fedora doesn't even notify users for available updates, you gotta check them yourselves, or use sudo dnf upgrade to skip rebooting alltogether
they introduced this due to a problem which started becoming more prominent:
let's say you have a program-A which depends on some other program, which I'll call program-B. now let's say program-B gets updated (thus killed) and it doesn't re-start autimatically. Now, program-A would likely break due to this, and this was the issue that Fedora wanted to avoid
So after a long time of back-and-forth between GNOME, KDE, SystemD, and Fedora, they eventually implemented Offline Updates in Fedora 18 (or was it 28?)