I'm just getting into adding color to my sketches, and it's been a long time since I used watercolors so the less expensive Cotman line is perfect for my budget and longevity needs. This unit is small, with all the colors I need for just about any kind of work I'm doing, with plenty of mixing space. The included brush is great for detail work, but I use a larger brush for the washes, even when just painting ACEOs. I like to keep my supplies handy, so the compact size of this is perfect, it fits in my everyday bag without issue.