Hm, I'm not quite sure how to read your post — I can see three possible ways:

(a) it's just a rhetoric question, to inform people of the existence of the module,  (b) you'd like to know whether I'm personally aware of it / have used it with success,  (c) you're experiencing problems yourself with using it to debug your POE application, and would like to talk more about it.   Or, maybe another one: (d) I've myself had too much exposure to psychology, and am approaching this in a way too complicated manner... ;)

Anyhow, here are my individual replies:

(a)  Thank you for pointing it out!
(b)  Yes, I've tried it in a number of cases, and found it very useful.
(c)  Which problems are you having (if any)?
(d)  Well... you make your guesses :)

BTW, while we're at it, there are (at least) two other modules worth mentioning in this context: Object::Destroyer and Devel::Monitor.