Patience isn't usually marketed as a feature, but I think it should be. RevitaG, in the way it positions itself, doesn't pressure you to expect quick results. That has changed how I feel about it. Instead of checking for results constantly, I just let the habit run in the background. The pressure to evaluate it daily has lifted. That's a quiet benefit but a real one. I'll keep using it as long as the routine remains easy and the overall experience remains positive. More on it here.

http://avian-flu.org/bbs/board.php?bo_table=qna&wr_id=4991963