I wish there was software like DSM for Linux.
Sure there is
cPanel, zPanel, (Mainly for website hosting, nothing else)
Webmin (A little different but it still needs some advance knowledge for configure servers)
It's not as simple and nice to install software packages on these systems.
DSM is simple, fast to configure, provides all required packages for home. But then there is a lot more software the will just work out of box and provide better security with CentOS.
We all love the WebGUI of DSM and we are missing this WebGUI on our linux operating systems.