I'm doing a NPPL because of the less stringent medical requirements.
All the ground exams are identical to the PPL and most of the flying syllabus is exactly the same.
You can fly anywhere in the UK in VFR (good visibilty) conditions with planes that fly up to 140 knots and carry max 4 passengers.You can upgrade NPPL to PPL and take 30 hours with you if you go along that route.
Lister