I have been skiing for the past 23 seasons and lived in Colorado for the past 6 years; which I have enjoyed the skiing here. Each year I have purchased a season pass. For the past two years I have had the Super pass. Overall I have been very happy with Copper Mtn. There is a wide variety of runs for different skill levels from greens to blacks. It is a great mtn if you are learning how to ski or if you are an expert skier. I love the back bowels and Tucker Mtn, but I also can say the much easier terrian is great as well.
I do not have any experience with the ski school, but I have taught my fiancee how to ski two seasons ago and she loves it. I would definitely recommend skiing here. Copper Mountain is in my top 5 ski resorts in Colorado.
FYI - I rated family friendly a 4 because I do think that Breckenridge is more of a family friendly resort.