I’ll admit that I don’t know much about it. I’ve just seen it discussed on here several times.
I hope to be reading in the future that it’s a success.
If you’re inclined to get the gist of the investigation, the book I recommend is
Beaudette, C. G., Excess Heat: Why Cold Fusion Research Prevailed gives an in depth history of the subject up to 2002.
Or, free of charge, you can go here for an introduction
http://lenr-canr.org/wordpress/?page_id=263