Here is my little review:
First off, I like the bottles, they all gave nice consistent sized drops which some other bottles can fail to do. Though I don't need the child proof lid, I can see how many people would appreciate it and they're no inconvenience to use.
I decided to test the paints on a piece of plastic (in this case a lid to an empty kitty litter container) that was primed with black, grey and white spray paint (I use Rust-Oleum as my spray primer) and a GW plastic mini primed with Vallejo surface primer, Light Ghost.
Off the bat I noticed these paints are all very bright, to the point of being neon. With brighter paints being notoriously difficult to get good coverage out of I thought that over black and grey primer these paint may not look like they're performing as well as they may actually be. So I used my three brightest paints from my usual paint stock to show a little comparison.
Here's the break down, the top half is straight from the bottle, the bottom half is thinned down. The order of the paints is: Black 1, Yellow 1, Orange 3, Red 2, Yellow Green 2, Yellow Green 3, Green 3, Pink 2, Pink 3, Pink 4, Army Painter Demonic Yellow, Army Painter Lava Orange, P3 Carnal Pink.
Close ups, straight from the bottle:
Straight from the bottle these paints are thinner than most other ones I'm use to. They're comparable to Reaper Master Series. After a single coat, the coverage was pretty good especially compared to the bottom row. As predicted they worked much better over white than black or grey. They took a while to dry, much longer than I'm use to with other paints. This can be great when you want to some wet or 2 brush blending.
Thinned down:
Again over white performed best. Thinned down they did get good coverage with a single coat and there's a lot of color showing through, especially with the yellow and yellow green. I was surprised how much those colors popped on black with only a single coat. Of course after being thinned they take even longer to dry, this can be good or bad depending on your preferences. For me it was a little hard waiting for it to dry to put a second coat on the model lest I pull the paint away and create bare spots. But that's just me, I'm a bit of an impatient painter, I probably should wait longer anyway.
Speaking of the model:
When thinned down it took two coats of the black to get full coverage which I have no problem with. I thought it was the best of the bunch. The two oranges and Green 3 also had good coverage with two coats of paint. Yellow Green 3 needed 3-4 coats to look good. Yellow Green 2 and Yellow 1 need 4-5 coats and honestly it's hard to tell the difference in color on the model (Yellow Green 2 is on the shoulder pad). The pinks took the most coats and Pink 2 still isn't fully covered.
So the darker paints all had the better coverage which isn't too surprising. Bright paints are just harder to work with. And as someone said earlier, these are not for beginners. It took me quite a while to find a good thinning ratio. But while dealing with the paints, I never saw any separation or problems with the pigments.
Overall, I think these paints can be very good and I would be interested in trying more of them. I would really like to see how this paint is with darker and desaturated shades.