What really perplexes me about Fyreslayers is this. Their potential is clear (ok, maybe I'm biased because I love Dwarfs..), and it would be extremely easy to make them shine, with just some care from GW designers.
I think they are probably the worst designed miniatures made in GW, please don't get me wrong if you like them, but there are a lot of technical issues that hurt my eyes: mirrored beards, almost 2 face expressions in the whole range (very lazy 3d sculptors...), weird poses and a general army of clones effect that really makes me sad.
The question is: is GW willing to make something with them? Judging the latest addition, I fear it doesn't. The new character is basically an auric runesmiter with less spikes, it's not a bad miniature, but it adds almost nothing to this range, aesthetically speaking.
Ok, Fyreslayers take their visual look to the old dwarf slayers, but I think that GW seems stuck in a kind of crative limbo with them, and this despite they indeed have enormous potential!
Strictly limiting the designers to the dwarf slayer look is weird, because in my opinion Fyreslayers should better incarnate the war aspect of Dwarfs, so there is plenty of stuff to work with, like runic altars, ur-gold/armoured troops (what is the difference between basic troops and elite troops, in the actual range? Only a different weapon.. a bit sad), war machines (a new thematic version of the flamethrower cannon?). GW overcame the "no cavalry" taboo of old dwarfs with the Magmadroth, and it has been a very good move, but then they didn't exploit it as they could: monstrous cavalry of medium sized Magmadroth (maybe a different kin of Magmadroth), or even a gigantic magmadroth bigger than the actual, that acts in game as the chaos mammoth, carrying troops and arrogance all around the tabletop.
It seems like, at the moment, GW just gave up with them, and it's really sad.