I have only tried it nasally so far, did a few lines this morning and found it pretty fun...like a rush but without that chest feeling. It definately potentiates weed but i found it altered the characterstics of the high a bit. About 30 minutes ago i did maybe a 15cm, quite wide line and i'm happy to say that kanna is money well spent. With this higher dose i can definately feel a more sedated high, the best way i can desribe it is as if i'm a little tipsy but also i've eaten speed. It's pretty fun, shame there ain't much writing on it. Without a doubt it's underrated