It's worked great for me. I used to have troubles with my mind trailing off when I read something but not anymore. My mind would also trail off during lectures and I wouldn't ever know what's going on. Now I can focus in a lecture and walk in thier already knowing what the main concepts and some their deatails are whith only about 15 to 30 minutes of preparation, depending on how well I want to know the info. This is a big leap for me because I used to struggle so hard in school and when people would call me stupid and stuff I would think to myself they were just born lucky and how would they feel if they were to try their hardest at something and still fail. But now it's all clear I focus on what needs to be done to succeed and getting a good grade in school isn't just completely look to me anymore, I feel like their actually is something I can do about it.