Ya know...like everything else. So does the BOKUR!!1!! Crow has the right of it though; and frankly I think we might have dojo'd the same Fiona thing. It's cute, but not sure it's viable enough that I would put it on the table without smirking.
In the flesh, I've witnessed a lot of people trying Irregulars locally. At the last local tournaments, there were more merc players than Khador players overall. I'm really excited by the possibilities. Coming from pretty restrictive Khador themes, seeing a "value" theme list with hundreds of permutations like this makes for many more exciting possible builds.
I think part of the reason you might not be seeing too much discussion is because it a) has been in testing for a while and not much has changed and b) due to the openness, its basically like not playing a theme and getting free points.
It's essentially like when mk3 first came out with free points on top...so it's good?