I have gotten in three workouts so far with MTS Vasky and it is spectacular. A real top notch pump product without a doubt. Crazy insane pumps while doing curls. I could not even pull my shirt off without falling into the wall. The combination of great ingredients in this product are bar none. It has no caffeine so you can stack it with any stimulant pre workout you want. And best of all it is priced perfect,. Everything clinically dosed so no label games like proprietary blends or bs. A straight up real product.