It's all good, the flora trio has been helping growers for years as to me it's the most known mineral feeding and the cheapest or one of the cheapest on the market.
It is efficient and on internet you can find many tweaked schedule.
I was using GHE for my last coco run and I've get a bit more than a gram per watts ( 300w ), my schedule is a tweaked one called "The Lucas Formula" and it's only using the micro and the bloom bottle alongside with cal mag