I've seen this particular holster come up in a few threads. I stumbled across this video while perusing the YouTubes and thought this woman provided a pretty detailed treatment of the holster for those who might be interested. The video is long, but she covers various methods of drawing, weapons access at contact distance, as well as concealment and appearance issues.
I'm not sure I agree with her in-fight weapons access assessment. I don't know if she's tested it at full speed. However, she's certainly done more work on that front than anyone else I've seen reviewing this holster.
Flashbang Bra Holster Review - YouTube
I'm not sure I agree with her in-fight weapons access assessment. I don't know if she's tested it at full speed. However, she's certainly done more work on that front than anyone else I've seen reviewing this holster.
Flashbang Bra Holster Review - YouTube