Every nutrient line out there has similar products available, i dont think it really matter which one, they will all achieve similar results, its mostly preference. In hydro I use ionic hardwater formula, but thats because its suits me. Before i used to use optimum which was two part so instead of having grow you would have grow a and b and bloom a and b, I didnt like that as I had to measure them out more. Really though its down to which ones going to suit you, do you want organic or not, do you want to just use grow and bloom or do you want supplements too. Have a read around the various companies go for one that you like the sound of.
If you dont like the nutrient finish the bottle and then change to something else.