I've been a member of their monthly subscription site on and off since before they started posting their new videos on double-biceps.com instead of female-bodybuilders.org.
As papadoc1981 said, they don't have many models and new videos only appear once or twice a month at the most. So in that case it's a must to subscribe to their newsletter to get new video info. On the other hand, the video quality is great with both the older HR videos and newer HD videos. I also agree with papadoc's opinion about too many close-up shots and not enough far or mid-range shots to get more of a model's overall body into the video. I also get annoyed when a model is flexing/posing one muscle group such as her abs for example but the camera is focused on her face instead, which once again is because of the close-up emphasis in shooting found on so many of the videos.
Overall I say it is worth purchasing a membership just for getting their older content and also to save money from purchasing videos individually. They do update weekly, so the recent individual videos do eventually get onto the members site.