I was pleased to see that this does not install Mono by default (mostly thanks to the fact that KDE has so far managed to keep it out).
Nevertheless, users can easily block Mono from being installed at a later point, by using the package manager:
sudo zypper al *mono*
The only issue I have experienced so far, is that the installer has the option to configure NTP and gives the option to sync the time, but there’s no network at that point so it fails. In previous versions I’m pretty sure that then kicked up the network wizard, but it doesn’t with 11.2 (at least, installing from the 64bit DVD that is).