Tried it, hated it. The oil was impossible to get out using Ida's bars so after five shampooings I had to go to harsher stuff. After three times with SLES based shampoo my hair was clean. Not super clean as it usually gets with just one SLES wash, just ok clean. On top of that I lost A LOT of hair. They just fell out while shampooing.
The worst thing about it: It didn't even help with my greasiness. I did it yesterday morning and I will have to wash my hair again tonight.... 
1a/bFi
16/28.3/32/tailbone
Maria's Hair