I've been using Genius-Brand products for multiple years now, including their Pre-Workout powder, Creatine, and Proteins. And as a fitness enthusiast that goes to the gym almost everyday and non-coffee drinker (I normally take caffeine pills), I'm a big fan of Genius Brilliant Brew.
I'm always on the lookout for new, clean products to try to improve my routine, and when I learned about this, I had to give it a try. I drank the brew on both heavy workout days and rest days for about a week. I could feel a noticeable boost of physical and mental energy, which was particularly useful after still needing to go out to do errands after an exhausting workout. It didn't feel like a spike of energy but more of a calm, focused energy that lasted for a few hours. I liked that it didn't clash with the caffeine and supplements I take before my workouts (too much caffeine makes me feel jittery). On rest days, I only drank the Brilliant Brew and skipped my usual caffeine pills.
The powder mixes easily with water, and I would describe the taste as cocoa powder with a bit of sweetness. I found it pleasant and enjoyed it both with and without ice. I could see this powder working well with various types of drinks and recipes if one wanted variety such as in protein smoothies or as a hot drink.