Cinnamon was the third desktop environment I was exposed to in my first foray into Linux, before I knew what a desktop environment was. The first two were Unity (which put me off quite a bit) and MATE (which I liked). My first impression of Cinnamon was not bad. I liked how similar it looked to the usual Windows feel. It took a while to figure out how to customize everything the way I wanted to (there are quite a few customization options, by the way). Once I did, everything looked very nice. The fact that you can download applets made by other people and share your own is a big plus. My biggest problem, though, is that Cinnamon feels bloated and slower than other DEs. This reason alone is why I chose to stick with MATE.