I do them with my daughter and it's so much fun. We have some in our office and a few in her bedroom. One time a bought a big book of Tinkerbell ones because I love faeries! It's so nice to just relax and let your imagination take over for a while.
I enjoy coloring them. I don't like when the fuzziness comes off and smudges the colors. That's annoying. I am a perfectionist, so it needs to have no mistakes to be worth something. I usually mess up, that's the bad part.