I am observing that yours is the one that is most consistently wrong.
Check the comments at the bottom of the link you provided. One guy says thanks. Everyone else says there should be significant warnings about issues/side effects from DE switching.
Yet when you tell it, we get your standard BS that it just magically works without issue, install 8 of them and it all just works perfect: "your Disro is going to have a default Desktop setup, if you don't like it you can install with ONE click 7 or 8 other options and try them out... if you don't like them you can uninstall them with ONE click and you can run every single one on one system if you wish and change your Desktop daily, it will all just work."
It really gives me the impression you are trying to fool people who have never used Linux before.
It was the first thing that popped up in google. It is also 4 years old.
http://www.zdnet.com/article/linux-mint-18-the-best-desktop-period/
Here a more recent article talking about Mint 18.
As I have said... and I am not lying Linux developers from every Distro have really been spending time making multiple DE a smoother experience for people that don't know enough about linux to type "xdg-mime default kde4/dolphin.desktop inode/directory" into a command line to set a default file manager.
http://segfault.linuxmint.com/2016/02/the-first-two-x-apps-are-ready/ This was a year ago now... The Mint team have done a lot of work making the major DE all work together well.