Yes, I use Peerless Watercolors, I have two packets, one regular and one bonus pack. I love them, the color is really vibrant, but not so easy to move around once it is on the paper.
The bonus pack is just one little square card of a about thirty? colors. Easier to organize or carry. I ended up carefully writing the names of the colors in order as listed on the back of each card because there is no way to identify once you shuffle them out of package order.
I find it works better to use my Aqua Brushes for working with the Peerless. Mine are Derwent Aqua Brushes, a set of three, they can both lift the paint with a squeeze and spread it quicker, with another squeeze.