I started using Pro Acryl paints before Monument had their own website, when they were sold through Creature Caster, and haven't stopped using them. The viscosity is near perfect, requiring little to know thinning. The coverage is smooth, the colors vivid, and the finish matte.
Of course, now that I have a few sets of this amazing paint, I needed a rack (or two) for storage and retrieval in my work area. These are easy to assemble and sturdy.
I recently tried Uncle Atom's synthetic brush set, and it's among my favorites, used on every model I paint.
Whether you are air brushing or brush brushing, if you love painting models/miniatures, I highly recommend you try Pro Acryl paint from Monument Hobbies.