This is one of two minis I purchased during a "rally" to show support for Adeptas Sororitas in March (the first is here). I never did hear if anyone at GW noticed the sales spike, although I read a few blogs where it was noticeable how much SoB stock was sold out.
I went for the flame-toting Seraphim in part because flamers are fluff appropriate for the SoBs, but mostly because I like the face mask.
I had a little difficulty getting this mini on her base. I'd originally had her leaping off of her right foot, but it looked unbalanced & ended up snapping off the base, so I swapped feet & pinned her in a more natural position. She's still a bit unbalanced, but I can still put some weight in the base.