I've only tried technaflora and cns17 previously, but H & G is a great nutrient line. A lot of people complain that you can't use the same base nutes all the way through flowering, but they're not realizing the importance of including the supplements because combined with the A & B base, they change the nutrient makeup of the solution. So in my opinion H & G is meant to be used as a complete system for best results. If you haven't picked up the amino treatment yet, give it a shot, its working great for me. Also, a lot of people run their H & G nutes at 50% strength but I just follow the feed schedule and get great results. So keep that in mind, and just watch the plants and let them tell you if the solution is too hot. No matter what I think you'll like H & G, its real simple to mix and very pH stable.