Background:
I am not in the UK and I'm not a qualified teacher, but started doing a "for fun" English class in a small, local, private primary school 2 years ago. Really enjoyed it, did the online TEFL, and have been teaching the EFL curriculum since. The school is keen to employ me as an actual teacher. They have contacted the education dept. who have said that my qualifications (BA Hons and TEFL) are enough, and if I pass the lesson observation then the school can indeed officially employ me to teach English as a foreign language. The teaching licence would only apply to that school though.
I am now considering doing the PGCE online, as it would
a) give me more opportunities to apply to other private schools (including international schools)
and
b) make me a better teacher (hopefully!)
There is also a chance that the education dept. would accept it as an academic teaching qualification and I would be able to complete the practical part here, which would allow me to teach my subjects (English and Art) in both state and private schools.
TL:DR: how much work is the online PGCE, what do you actually learn, and is it very specific to UK schools or more about teaching in general?