Tracy Beaker is a real life, believable 10 year old - she's offensive, defensive, loud, obnoxious, occasionally violent, and totally lovable. If she was real I think we'd foster her!
The novel is a warm look at life as a child in care, with all the ups and downs, loves and hates that that engenders. In no way is Tracy a Pollyanna character who can see the best in every situation, but she is a gutsy and intelligent girl who just deals with all the situations that life throws at her. And this is where she is so endearing to other children - she IS naughty (sometimes, she's horrendous!), she DOES get into trouble and spends time in the quiet room - she does many things that my son could identify with, and she suffers the consequences, just as he has to! She is a child who other children can relate to. And like they have to, she just gets on with it.
The ending is open, with no decisions made, no new life to go to - but there is the hope that this will happen. And indeed, how else could Jacqueline Wilson end it? Life has no certainties in reality, no sure-fire happy endings, but it does have lashings of ups and downs and ladles of hope - and so does the novel. I - and my son - heartily recommend it!