Send Clowns,
I am not a spokesman for the EPTA and do not wish to violate the pprune "no advertising" rule, but I can answer your two questions.
The price quoted is for the entire groundschool, but is based upon students also signing up for the flying training (which is also very competitively priced). A higher (non-discounted) price applies for students who want only the groundschool. But even this non-discounted price compares well with most other schools (including yours).
The 19 week programme does not include the two weeks of examinations nor does it include any blank weeks prior to exams. The total elapsed time is in fact 22 weeks. this comprises of 1 week of free academic brush-up prior to starting the course, 19 weeks of training, plus two weeks of exams.
The total teaching time actually exceeds the JAR specification, and is longer than that of some other schools. There is however a downside in that reduced elapsed time means an increase in pressure on the students. The reduce elapsed time is achieved by teaching for 6.67 hour per day ( 8 x 50 minute periods), instead of the more usual 6 hours per day.
The grounschool package also includes free retraining for two further attempts at each subject that students fail. I'm not aware of any other school that guarantees to provide such training.