Are following some very personal impressions and comments about current Gnome 3 Themes (desktop and gnome-shell) available for openSUSE (11.4 and Factory).
IMO the default Adwaita is not a very nice Theme and its default settings are a bit ugly since the height of title bar is too big. For this I modified the standard configuration by following this very interesting article:
Then I switched permanently to Atolm Theme, which I like much more and I would like to find it as default on 12.1.
The other detail I think is lacking for Gnome 3 is little availability for customization for Gtk+ Theme.
In Tweak Tools-->Interface (for 11.4) settings we have just Adwaita and Raleigh, when we could have much more options and especially a way to install more Themes also through the Internet.
The care of details for a Desktop Environment is the key users have to choose one brand in place of other and so far Gnome 3 (despite I like it and use as default) is a bit far to be as good as its predecessor.