Great things with Vengeance pre:
1. Best tasting pre. No disgusting after-taste.
2. No crash and you just keep going with energy.
3. Massive energy boost and the perfect amount of tingles. You feel it but you don't feel it. You just know you're ready to smash the workout.
4. Once you take the pre, you actually smash your workout.
5. Once again. The taste is perfect. You get a strong flavour, but it's not too strong. It's the perfect amount of flavour.
I don't know what's different about this pre that no other pre has, but you just don't crash. You just keep grinding.