Simplicity of Aurora is the most I like about it. I have been playing with it recently by asking it to give analogy for some deep technology concepts and the kind of simple examples it floated to explain some tricky concepts amazed me 😊

I tend to use it every day and it is very quick to use. I use it for rechecking my drafts for official emails. 

Quick and accurate results. 
I use to search technical queries, programming syntax, nearby services, shops, etc.