I bought these hooks 3 years ago. They were just what I needed for my baby's room. Today I was trying to redecorate my son's room and remove these hooks (exactly 3 of them). Instead of easy damage free removal I have 3 spots with paint removed and visible drywall. There was no change of removing it gently - believe me, I tried! 
I gave it a one star just because it was a good product until I have to remove it...