For the first 90 minutes its definitely got a stronger stim effect and aggression than Craze.
Craze never made me feel aggressive unlike the likes of Jack3d or compounds that act on the androgen receptor. If you've gotten a strong CNS effect from a test booster or anabolic you'll know the kind of purpose and vigour I am talking about. Craze was more akin to feeling at one with the weights which precludes the emotions that Frenzy engendered in me.