I bought these in the Dollar King store, and thought they were like watercolors but the result was like a mix between gouache and watercolors. Not that I mind, I like how they look: a little thick but if you add more water the thickness is gone!
What I didn't like was two of the tubes were damaged (;¬д¬) , didn't realize this because they were sealed. Back at home I used some little paint containers (I think they are for pre schoolers) and poured some of the paint.
These paints were veeeery cheap, so in the end there are no complains at all ( ̄(エ) ̄)ノ