Hello my name is Juan and I am very impress with Lifeflow. I have been a HoloSync users for about 4 years however with Lifeflow 10 I had a very peaceful deep meditation.
Also I have been listening to Optimal learning while I do Qgon and I am also impress for the stillness of the mind and the meditative state that I get into.
I think I am going to continue with Lifeflow and forget Holosync.
So far, I am happy with Project meditation