Seriously loving these guys so far. They just seem to have so much more personality than regular dwarfs. (+they clearly take the "Most metal race" crown from the Forsaken too lol). I have a feeling they might end up more popular than regular dwarfs.
Plus.. their racial home is a bar. What's not to love?
If anything, I think it's a shame that you have to go through so much to unlock them. I'd imagine even some Horde would be tempted to try a DID, if they didn't have to do the whole attunement on a different lvl 120 to get them.
Now the question is, why the heck won't Blizzard unlock the Heritage weapons?