Ratings of the blocks are a great way for learners to tell us how they are liking the content and experience. In addition to asking them about their sentiment, we also ask them to provide additional textual feedback. Now we are 

bringing this textual feedback to the creator console

 so that creators and the team can look at the feedback learners and leaving in the respective blocks. Just 

hover the icon and if there is feedback it will display in a tooltip

Coleap changelog

Block feedback available to creator