Agreed. But be aware that the first few weeks are going to be challenging and really require patience. I suggest the use of Seachem Purigen in your filtration and charcoal. After a few weeks, everything will clear up...and then your growth will be simply amazing...Well first let me say, buying ADA stuff is like buying Apple products the prices are almost always set, basically what you pay is what you get.
Amano himself says he gets the best results using Amazonia(the black/dark brown one) and it is the most popular one, but they are almost all the same.