I currently take a multi-vitamin (brand = whatever is on sale at GNC, which I like to split in a.m. and p.m. doses), fish oil, a mid-day vitamin C and D and Iron, pre-workout that includes Beta-Alanine, and BCAA's after the workout.
Reload Fitness provided me a sample of MRM's Driven Pre-Workout Boost for me to try and review, and I was happy to use it. I really like Driven.
I like the mixed berry flavor. Although, I'm not so sure it tastes like mixed berry-- it's definitely got a fruity flavor. I don't find it overly sweet or artificial tasting, and it doesn't leave a bad aftertaste like some pre-workouts do. Really, the taste reminds me of sweet tarts, which is really good, considering Driven is sweetened with stevia and monk fruit and contains only natural flavors.
Honestly, I'm hesitant to use products that contains caffeine or other stimulants because I'm on thyroid meds (due to a sluggish thyroid), but this product isn't heavy on the caffeine-- it only contains about the equivalent of a large cup of coffee. It doesn't make me feel jittery at all.
I had stopped taking Beta-Alanine and Creatine for a few months and noticed my gains had stalled, so I started taking Driven and happily in the past few weeks I'm back to hitting some PR's-- in my overhead squat, my full snatch and my front squat.