Love them!
I really love these stickers. First of all they are great value for money - you get 8 sheets with lots of different stickers.
I was very impressed by the paper quality. Even after adding A LOT of water to them, the paper didn't curl and the surface didn't get crumbly (can't think of a better word, sorry).
The only thing I would change about them is the white border around the images. Because I can't really paint neatly, I have to cut the border off so you can't see that I coloured over the lines, lol ;)