I personally got 6/7 A*'s, 4/5 A's and a B - I was proud of those results, given that I come from a state school with an average of approximately 50% 5 A*-C grades, and no-one in my family has ever been to university. I also came out as the top boy in my year, which is a more important indicator to universities. It's obviously not the best physically possible, but it's good given the contextual data surrounding it, which is the important thing. GCSE's need to be taken contextually - whether they are good depends on individual circumstances, and where one hopes to go with them. Even at the likes of Oxbridge, a "good" set of GCSE results will still differ dependent on individual circumstances.
I'm also in a way happy that I didn't get the best GCSE results - the girl who did attained 9 A*s and a single A. However, she then got ABDD in her January exams for AS due to over-confidence carrying over from her GCSE results.