To begin with I want to say I love mine. I bought it about a year ago to go to my first Front Sight training and I fell in love with it.
It is double action on the first pull if you de-cock it. That pull is long and somewhat heavy. In SA after the first round if you just reset the trigger for the next shot it is light and smooth. If you let off on the trigger the SA is long but light and it has a set position that you feel as you pull the trigger.
It is what I carry most of the time now.
I haven't had a malfunction yet (that I didn't cause on pupose for clearing practice) and have put well over 1000 rounds through it.