Just did a search for those nutes at "other forums" and it seems like a reasonably popular brand and didn't come across anything negative.
Why would you buy soil
nutrients for hydroponics though? You will probably going to have to buy some trace elements as many of the soil fertilizers lack them or only have low doses. You also want to make sure the nitrogen source from that fertilizer isn't all urea as urea isn't soluble in water and needs soil bacteria to break it down into a usable source for the plants.