This is a good little foundation. I bought this in the shade 21N, which I assume means 21 Natural or Neutral. It's a little warmer toned than the 21C (from what it looks like on the brand swatches), but it is not quite yellow enough to be classified as 'warm'. My skin tone is between a MAC 15-20, or Nars Deauville in their Natural Radiant Foundation for reference. I usually use a shade 21 in KBeauty foundations and BBs. This foundation is a little light on me when I first apply it, as my skin is a bit more yellow/golden than this, but it adjusts after a few minutes to look more natural. For the swatches I included here, my wrist is slightly lighter than my face, but is a decent representation. Due to the lighting, my skin looks a little pinker than it is in real life.
This foundation lasts a good amount of time; I wore it today with no primer and no setting (powder or spray) and it still looked nice and bright after 9 hours, with some minimal fading around the nose from blotting. It doesn't darken or oxidize terribly, and I was pleasantly surprised on how flawless it made my skin look. I've worn it quite a few times with my skin in different conditions and I can say that this foundation isn't the most forgiving on dry, flaky skin, as I have tried it when I had some recovering skin irritations going on and it didn't help smooth out the appearance of the dry skin I had. So, this will work best on moisturized skin. It has a liquidy texture with decent coverage. This also has a light rose fragrance, but it hasn't irritated my sensitive skin.
The packaging is nice, in a no-nonsense tube with a small, pointed opening. I like how small the tube is, as it would be easy to fit into a makeup bag or to travel with. it looks quite tiny compared to standard foundations (which are usually 30ml rather than this 20ml), but it holds a good amount of product. Since the foundation is quite liquidy, it's easy to squeeze a little too much out, so just be careful with it.
In all, this is a great little foundation and worth the price that it is, in my opinion. The shade range isn't great but it's worth a try if you do fit into one of their shades, and are looking for a nice little foundation that doesn't cost a whole lot :)