Hi, umm I've never heard of it, sorry. My ob actually sent me to a physio who specialising in pelvic floor strenghthening. She was great, taught me about all the different muscles down there, showed me a model. All explanations were great and holds were only for a few seconds and only a few times once a day. They really helped, at 2nd appt I had an internal while I did them(thought I would be embarassed but she was great). I am now moderately strong, pregnant and no longer having the sneezing leak.
It is also great even if you are not wetting yourself as she got me to keep a bladder diary and taught me when I could hold on longer etc. I also tell you what the bi'g 'O' while dtd was a lot more intense aswell.

Hope that helps but maybe not. If you decide to go with the product let us all know how it works.

Love