Important Update 2019-12-08: Freiexchange is offering to us the possibility to advertise SLM this week on their new newsletters channel as a featured coin. We need to provide an image and the text. What concepts would you like to put into?
Personally, I think two of the key things are the GPU/ASIC resistant algorithm, and the ability to mine on extremely low end hardware like small ARM boards. The second in particular is the main thing that gives SLM an advantage over any other coin.