I'm using Xen since 2008 as hosting provider then in 2014 due to a problem on one of my servers I switched to XenServer primary for ease of administration with XenCenter before and Xen Orchestra after. Then reading XO Blog I discovered XCP-ng, I installed a pool of 2 servers for test and waiting for stable realase to upgrade all my servers, some still on Xen 4.6, to XCP-ng.
@olivierlambert : i saw You don't have an Italian translation of XO, If You want to prepare the translation file like for DE one I can help.

I'm using Xen since 2008 as hosting provider then in 2014 due to a problem on one of my servers I switched to XenServer primary for ease of administration with XenCenter before and Xen Orchestra after. Then reading XO Blog I discovered XCP-ng, I installed a pool of 2 servers for test and waiting for stable realase to upgrade all my servers, some still on Xen 4.6, to XCP-ng.
@olivierlambert : i saw You don't have an Italian translation of XO, If You want to prepare the translation file like for DE one I can help.