I could see it being aimed at 10+, I just wasn't sure about the contrast of look and content.
Also, as some others have mentioned, some of the jokes seemed a bit grown up. I may have vaguely heard of Freud at 10, but I wouldn't have understood the term "Freudian".
Bear in mind that I'm not a CBBC commissioner and don't even remotely know what makes kids tick, so good luck!