The HF bits will work for most tap work. I use them all of the time, in plastic, steel, brass and aluminum. When I use one a few times I make a note to buy better a quality bit in that size. This way I also have one on hand when I break one on Friday and have to wait until Monday when the hardware store opens.
Same goes with the taps and dies, after I have used a specific size a few times and know I will be using it more, I buy a better quality set in that size. If it is a size I know I will use quite a bit getting the better quality replacements makes sense, because the HF bit, taps and dies are not the same as the better ones. And I see no need to buy the entire set of the better quality ones because some of them I may never use, but I do have them in the HF set.