This is Beta 1 Release. Ubuntu GNOME Beta Releases are NOT recommended for:

Regular users who are not aware of pre-release issues
Anyone who needs a stable system
Anyone uncomfortable running a possibly frequently broken system
Anyone in a production environment with data or workflows that need to be reliable

Ubuntu GNOME Beta Releases are recommended for:

Regular users who want to help us test by finding, reporting, and/or fixing bugs
Ubuntu GNOME developers