It is a nightmare! I think it would be easier to get an audience with the Pope than see my GP.
You phone up, the receptionist then quizzes you on why you want an appointment (it's an open plan reception so everyone hears what she says, and she usually repeats exactly what you say to her!), then you are informed that a GP will call you back to decide if you actually need an appointment. And don't even think about asking to make an appointment at the reception desk, you get a flea in your ear and told to go home and phone them!!
My advice? Go to Uni and train to be a GP yourself. Be the quickest way to actually get some medical advice.
(And a Merry Christmas to you all!)