I had a small problem with my first tin of these pencils - it was missing a color because it had a duplicate of another. Unfortunately, due to demand, I had to buy it elsewhere to replace it. Other than that, they disperse nicely in water. Between this set and the Julie Nutting Hair and Skin Tones set, you have a nice range of neutral tones that can be used for drawing portraits.
I have all 6 sets & love them all! The colors are great & cover a large spectrum of colors- They also blend really well! Only downside is that there are a few duplicate pencils throughout the 6 sets, so you may not need all the sets-BUT the duplicate pencils I found are mostly neutral colors & I personally use those a lot, so I don't mind having extras of certain colors/pencils.