Not a very significant con, but it could have a bit more installed by default (LibreOffice, etc) to make it more usable out of the box. Luckily, if you're missing something you need you can easily install it from the software center.
openSUSE with KDE has beautiful icons, animations and familiar traditional PC environment, However, the confirm buttons are out of the screen in settings and sometimes the desktop is not responsive (terminal works).
Mint is highly recommended for both users coming from Windows, as well as users coming from Ubuntu, but unhappy with Ubuntu's recent, rather dramatic interface changes. Mint provides an updated interface with a look and feel similar to Gnome 2, with an application menu reminiscent of the Windo...
Rolling release is quite pain sometimes. You might face some problem with a bugged application since you always get the latest version. This problem is a little bit solved by Manjaro distro where applications are tested but updates are slower than usual.