so i recieved the free samples of motivate and perform and tried the motivate first. i liked the awake feeling i got on motivate. i took one pre w/o and then another a few hours later for working graveyard shift at the hospital. i really dig the motivate and will most likely buy more, it helped me stay awake at work all night. with the perform i would say that i noticed more hardness and firmness in the morning so i would say that is a good thing lol. thanks guys