Another first bloom for me. I've had this for a year, mounted on cork. Very easy grower, not fussy at all about temps or humidity! If past growths are any indication, it seems to bloom on every new growth.
Incidentally, I remember following an earlier thread from someone else growing this one who reported that the flower didn't open all the way. I can second that observation: it's a very pretty little bloom, about an inch across, but it seems to want to stay partially closed.