I am giving these five stars not because the results are spectacular, but because this product does exactly what it should do. Do you have a whole bunch of minis that you want to base quickly, and have the base look like you *tried*? Wargames Atlantic is here to the rescue. I glued hamster bath sand (this is a useful product for basing and terrain - it's much finer grained than normal sand, so I think it works better for texturing at miniature scale. I will never go back to regular sand) to two of these, then remembered they were supposed to be zero effort and did not do that to the others. After that, I hit them with a speedpaint or contrast paint, or else a regular paint and then a dry brush and/or wash. Painted the rocks back gray.
My take on my own test pieces is ultimately that the sand can be worth it if you're good at moving quickly. If you have a small child who can be bribed to do the sand-sprinkling while you just swipe a brush of thinned glue across part of the base, like an assembly line, it's not too burdensome.
If you don't want to screw with sand, well, that's what these bases are FOR. To relieve you from effort and time spent on basing.
I think that base color + drybrush TYPICALLY looks better than contrast or speedpaint, but that's not totally consistent between colors. The cygor brown with sand actually looked great, and the pylar glacier with sand looked pretty decent with a Pro Acryl white-blue drybrush. I'm about to do a really vulgar quantity of minis for Frostgrave, so "how do these look with pylar glacier?" is a question of some import for yours truly.
Anyway. These are cheap. If you have a bunch of tiny mans that need quick basing, these will do it. I will probably order more, definitely will if they produce more sizes I need.