My daighter is 7 and wanted to sign up - probbaly for the fond memories. She found the games too easy, but they are well done and appropriate for probably 3-5 year olds.
My HUGE gripe is that you are COMPLETELY unable to cancel the subscription online. I tried several times and never understood why I could not do it. A few months later I saw that they do list a telelphone number on my credit card bill with the monthly charge. I called and was told that I cannot cancel online. I informed the representative I thought this was very poor of a Disney site to not allow this. She informed me that it was due to "child protection" which I also felt was balogna because my child could not create the account and enter my credit card - I did. That got me a little upset, but the representative was otherwise polite and did cancel the account. Hold time was minimal and the experience was otherwise timely - I just feel it's very poor that you have to call to cancel - though for those with a young child who will benefit from several months use, I do still recommend the site - just look to your credit card statement when it is time to cancel...
My daughter started playing this when she was 3, and at 4 it is still keeping her interest. I love that the skill levels get progressively harder, but rarely hard enough that she cannot figure it out herself.