What about Astrum - how compared to ReactStoryBook

Hi, has someone already heared about or had experiences with Astrum?

I was getting into this and try to figure out how much this compares to ReactStoryBook or will make Life easier. Does ReactStoryBook covers all of Astrum when doing development in React or is there some extension? My personal feeling is, that we could provide our designers with some easier tool than ReactStoryBook but not sure about that.

Thanks for feedback and sharing your thoughts