Marc D. reviewed Qualia Focus
Just beginning, but overall feel more attentive and focused.
Best preworkout ever
I use this before every freestyle calisthenics workout. This is better than preworkout.
Smooth effect, barely noticeable effects, until evening when I realize I want to keep working instead of wrapping up.
I say excellent overall experience because I was motivated to work more in the evening. I prefer working to watching TV - usually I watch TV. Literally more mental energy. If this is a placebo, oh well (!).