How should it be different than Dropbox/Medium/Telegra.ph/Bold's editors?
Before Dynalist, I had never heard of (or remembered) Ctrl+k (but wish I had). And currently it doesn't work.
That's a different topic, which you could make a post about if you haven't already, and share your thoughts on how to spread the word about it. The Dynalist team has done its part in making a reddit ad, Quora posts (I found it from there, too, via Google), etc.
I guess the people who would otherwise review Dynalist live inside it since it's very useful and versatile, so we never hear about it. But I try to promote it wherever possible.