the only flavor i have tried is the cotton candy. the mixability is great. it woke me up definitely. i bought it for use with studying this semester. the only thing i noticed, and this could be just me...was that i was only able to hit the books for about 30 minutes and then i had to get up and do something for a bit. it wasn't a jittery, shaky, nervous energy, i just couldn't stay seated lol. all in all a good substitute to my morning coffee.