It was quite interesting experience, considering this is the first GAiA version of MDM. There are some minor things you may want to know.
1. Idle timeout can only be set from WebUI. But even there, it does not seem to work. It did not work for me, although I might be doing something wrong.
3. Said that, the first configuration and MDS roles are both done from WebUI now.
4. Expert password can only be saved if you set in in CLISH and then log off. If you just reboot, as I did, it is lost, and you have to re-define it again. Such an ugly bug.
5. SmartLog is complaining about having not enough space to start. It might be just my lab server, but I have an impression it reads free space on /opt wrongly.
Feel free to share your own experience.
Update: MDS commands are actually working from CLISH after reboot. What's a relief...