The Open Source / Linux blog itsfoss.com published a detailed and honest review about Univention Corporate Server on April 12, 2017.
Univention Corporate Server (UCS) is a Linux-based solution to manage your IT infrastructure. It is close in concept to a Windows Domain Controller or a NIS server. While all the building blocks (OpenLDAP, Kerberos, Samba and so on) are largely available and already deployed on countless networks, UCS aims at lowering the entry barrier for switching to a Linux-based network infrastructure.
Instead of tweaking configuration files and handling interoperability issues by yourself, UCS provides a Web-based interface to manage your domain, including computers, users, shares and many other entities.
The whole article can be found on itsfoss.com.