If you have any questions while exploring the Radio feature please ask. Also, if you have any suggestions, please add them to the Feature Request section. There have been many threads in Feature Request about the Radio already. You might want to give that area a search and read what other users have requested concerning the Radio Function.
The devs have mentioned that a re look and update of Radio is in their sights. Here is a link to a post I think you’d find interesting/informative: