I dont like the taste of co2 in buds, it's not safe and if you over use it it makes the buds harder and plant matter also ( leafs get too thick). It burns funny sometimes (snap,crackle,pop). And if you buy bad(low) quality co2 it smells bad.Using co2 is life treatening and may result in your death or kill someone in your house,if not used correctly. Commercial growers only use it to boost overall yield not quality. MMj patients should always go for quality over quantity.