With yesterday's GNOME 3.14 release the Wayland support is considered sufficient for day-to-day use running the GNOME stack on Wayland rather than an X11 Server on Linux. However, the GNOME developers don't consider this to be "100% complete" yet and there's still some more work needed to be cleared up on the Wayland side...
September 25, 2014
There's Wayland Changes Needed Before GNOME Will Be 100% Ported
Read more at Phoronix