dyna is cheap you could say, but AN over charges and tricks people into buying additives, the only good AN nutes ive heard of are the Sensi line, im sure those may be over priced too. i would go with Jacks Classic, Dyna, or Bontaicare(imo bontaicare has been my favorite, they do have lots of the same nutes but guaranteed analysis is what you should look for). even fox farms, i just dont have the expensive taste for AN, not to mention i got salt buildups when i used them. AN has been called out on false advertising a lot too, thats something that will discourage me from buying a product. AN makes all the money cause they know how to market a product, saying "itll increase yields by 400%" can appeal to a new grower but for most of the people that can see through it, they know not to purchase these products, unless you get them for incredibly cheap. i used to have an advanced nutrient factory opening a few miles from here, someone i know traded the guys weed for nutrients(call me a liar all you want, this is 100% true) and they gave him a shit ton of their revive, grow, and bloom. also some h202. i had all these nutes passed down to me, i used them in moderation but still found myself getting burns.
but everyone has their view on a nutrient company, either way all of use have a different way to cut a tomato but at the end, whos tomato is really better. yield and growth dont only rely on nutrients, rather genetics and conditions. just be aware, those companies that target cannabis growers will overcharge you. dyna is used by farmers across the country, as well as jacks classic. if plenty of people use them and approve of them, most likely marijuana will do pretty well with it too since its just a plant. just dont fall for overpriced shit, thats money you can use on so many other things.