Financial aid at Columbia

Hello all- yes I know there are other posts on this topic, but because my information is not the same I thought I would ask for opinions. As of right now, columbia seems like they would be the only college (or Ivies of that matter) to give my family financial aid. Together my parents make ~150,000. I also heard from some friends that all Ivies do a 10% rule, where you are only charged 10% of their gross income, and nothing more, but some information is not adding up when it comes to columbia. Is that true about Columbia and the 10 rule or was that false? Also for engineering, do you think columbia would be a good choice? Thank you for your time!