i would classify maté as very reliable. his work with addiction is very fascinating and speaks to a high level of compassion for his patients. in the realm of hungry ghosts is a phenomenal read if you have the brain power to listen to all the f*cked up shit that comes with addiction. he was doing harm reduction at a time when harm reduction was entirely not normalized. i think his work with ayahausca has potential but unfortunately f*cking health canada had to get involved. lol.