I used to love Zentyal back in the days of eBox.
Like a lot of people, I got sick and tired of losing features with every new release and trying to work with a community which wasn’t listened to by the development team.
For me Zentyal feels much more closed. NethServer has a very modular design, which lends itself to a much more agile server.
The addition of Samba 4 in NethServer 7 is a game changer, no question about it.
The future is looking very bright for NethServer, the community is very active and the development team works so hard to listen to the needs of the community, something that is sadly missing from Zentyal.