Not personally, cos I don't have children yet but I do intend to. My best friend has stored both her childrens cords through a company called cryotec...it cost about $1800 up till their eighteen then they have to decide what they want to do with it. Just as you are aware though....if your child does get an illness like say leukaemia they probably wouldnt use the child's own cord cells. This is because the genetic makeup that led to the leukaemia taking hold will still be in thoe cord cells IYKWIM and the leukaemia could come back at a later stage. Where stem cell storage really makes a difference is between siblings because the matches are so good but you can eliminate the bad stuff If you get what I mean. I hope that makes sense. I think it is a very worthwhile thing to do......my two cents worth.