I’m during migration from Zentyal multi domain email server to NethServer multi domain email server.
I’m sure I will not be sorry but I will miss some things: The query logs (most), automatically search for new updates and the possibility to choose (select) which updates to be made (regarding to Jim’s worries for CentOs base updates), OpenChange (for those who want to replace MS Exchange Server) and maybe minimal desktop built in.
Regarding Endian, not yet.