Trawl through the long alphabetical list of comedies on iPlayer and you'll occasionally stumble on a gem like this. It's not the story that's important, it's always the dialogue and the characters. A funny character like that is usually only created when the actor plays an exaggerated version of themselves (Partridge, Brent). It was a surprise to discover that she wasn't also the writer. She certainly seems to be on the same wavelength as the writer.
The dialogue in the cafe is brilliant, as she slowly realises that her young daughter is both more successful and more mature than she is. And drunkenly marauding around A&E is very funny (you're probably not allowed to do that anymore).
But the best scene is at her parents' house. Her mild-mannered father uses TV as a coping mechanism when his passive aggressive wife and feisty daughter get together for a row. "It should be called Strictly Come Leapin Aboot!"
I hope that the writer writes more for this character.
