i know you are going to find many different answers of what nutes work best for each grower. i have 3 friends that grow and when we first met we had 4 different ways of growing. and we would get 4 different results when we shared seeds and clones. i am not tooting my own horn but they soon switched over to ces for the simple fact of seeing my results using a 5 bucket diy system that i was able to build for just 71 bucks. it is a very simple to use dwc includes very thing you need from a drip ring to the air pump. one thing we have to remember with some diy's are that the uv plastics wll break down over a few years but it is a good start up point to make sure your successful at and want to continue in this hobby with out the huge start up cost.and as you learn these system of buckets can be modfiied to be even better but it is the basics to get you growing.
but i do ask for you to check out ces at cuttingedgesolutions.org browse their site check out the feed chart and nute calculator and see how easy they are to use. and like i said when one company makes just one set of nutes they must be doing something right. and i feel along with other growers i know that use ces that it is a tweked version of the flora series by gh.