Ranked in these QuestionsQuestion Ranking
Pro Fast, elegant and stable interface
Cinnamon uses a traditional desktop userflow that most computer users are familiar with.
Pro Designed for traditional desktops
Intended for large-screen, non-touch devices that extend traditional concepts with functionality and good looking aesthetic.
Pro The keyboard shortcut design is very friendly to users with windows background
Your win+E, win+D etc are still working after migrated to cinnamon from windows
Pro Very well supported
Has a great community and is very well supported through Linux Mint website.
Pro Nice themes
Pro Very easy to customize
Is very easy to customize using the built in theme and applet tools, It automatically installs themes and desktop/panel applets for you, so you mostly won't have to go search online for them.
Pro Stable DE
Pro Lot of configuration options
Both Gnome and Cinnamon got the same looking configuration panel. There are 40 sub-panels in Linux Mint Cinnamon's, whenever there a far less with Ubuntu Gnome 3's.
Windows, notification, smart corners, windows overlay, connexion windows... you can have those in gnome, but that require compiz and other stuff.
Despite Cinnamon being on its stable second version it still crashes a lot, ranging from plugins all the way to drivers.
Con Few themes
Con Lacks vertical panels
There are no vertical panels in Cinnamon.