Prevents you from having to spend time going to multiple websites to access documentation. Access them all in one app!
+1000. Dash is seriously a must have. I'm constantly using it to quickly look up docs. It's always faster than opening a browser and searching. Plus, bonus: if you're on a plane or for some reason without internet, it makes development still possible since all docs are cached locally.
I've tried about 5+ different code editors. This one is the best.