Just got the bright color set which is the first Quantum product I've tried. Love the consistency and workability and the way it presents in the skin. Have only gotten to use the blues, pinks and purples so far but love them for highlights and watercolor, you name it. Very versatile pallet and wonderful to fill the gaps in color ranges not offered by other producers of this type of ink which tend to not have colors this bright. I will likely be getting all of their colors after I receive the "Heavy Heart" set I've already ordered.