These saved my grow after the rookie mistake of starting with Miracle-Gro (this was my first time growing). I'll be using these in the future for my next grows.
Started out well, but about 4 weeks in gave it horrible nutrient burn, which stunted the growth considerably. Switched to Advanced Nutrients based on recommendations as soon as I could.
This was my first grow, and GSC was very forgiving and survived me messing up many times along the way. The final product smells and tastes delicious, and packs quite a punch. Very euphoric and uplifting feelings, with a moderate amount of dry mouth.