Hi, I got one a couple of month ago on a Christmas sale, used it ~30 days so far. No problems getting a good fit with a hood or hat under, but with nothing underneath it's not so comfortable. Adding some extra padding would help I think. Everything is scaled down to achieve the low weight so can't really complain there.
I've got hit twice with ice, IMO it doesn't absorb the chock as good as my hardhelmet(Petzl Elios)and the foam do get damaged from harder hits. No problems if you get a dinner plate or similar and let it bounce of your helmet.
In the attached picture you can clearly see were I got hit. First one was pretty hard, second one was strong enough to knock me of balance so it was pretty big.
As for other brands following I wouldn't be surprised if we saw a couple of more helmets in the coming years, EPP has been using in helmets for other sports some time now so I guess it's just a matter of time before we start seeing more of them but I haven't read any reports from OR, OD Freidrichstarssen or similar so might take another year or two?