I mentioned the Ativ, but I actually own the Nokia 920 which definitely needs an adapter to make the microphone work (strangely enough the middle button works for skipping songs etc). I am unsure whether my issue will be the same on Samsung.
my pair has had zero issues so far (knock on wood). But the QC of these does suggest they will drop in price and like ultrazino I will gladly take advantage of that price drop.
I do suggest people buy from sources with a return policy though or demand a copy of the invoice if buying used as these do seem to have issues. You want the receipt for warranty and you want a return policy so you don't have to sell the IEM if you decide you don't like it as the resell value on this IEM is taking a hit due to the QC issues.
In my case I won't be reselling my pair pair time soon
. I am very happy with this IEM, more so than anything I have bought in the past couple of years.