Another good option is the Army Painter sets of paint. Inexpensive, bright colors. The Zombicide sets are particularly good, even if the names won't match up with what they normally carry. If you are wanting to dirty up the models a bit, I would recommend their zombie shader, but not their strong tone (unless you want really dark tint to your just painted models). They do not have the triads that Reaper does, but the sets aren't as expensive.
I have one of the large sets of Vallejo Model Color, but I have not gotten my obsidian beads yet to agitate them, so I haven't even tried any of the paints yet... I would cry, but I have a backlog of my wife's zombies keeping me busy and not wanting to mess with them too much yet. Also, I have to clean and assemble all my Malifaux models, so I have time.
I'm still debating on color schemes with my Malifaux models and I may pick up some of the fleshtone Reaper triads to round out some of my color areas, and to get a feel for how they compare to the other two that I have.