We do use it, but I find it very difficult to set up. It has to do with the text used to explain which option does what. I have several teachers using it but they all tell me that they do not understand the helptext that is being given. This might also have to do with teachers that only have basic English knowledge.
If you want, I could help you try to explain the options more clearly so the help provided to set the reengagement module up is more easy?