heard good things about nirvana, but really not needed w that line up. AN likes to really add on products for their lines. I wanted to go all out when i first bought the products but luckily didnt have all the money for em. grow shop guy talked into buying gmb 3part pH balanced, big bud, bud candy and overdrive; gave me free sample bottle of b-52. love the products, easy to use, great results (so far, still got few days til harvest); however, i'm going organic for all my next grows for taste (since i'm personal grower). There is an amazing grow report out there from someone who used like 8 diff nute companies and 10 diff runs to figure out which were the best nutes out there. Earth Juice, Advanced Nutrients, and Canna were the top 3 finishers for almost every category. If i can find it, then i'll post a link up here.