Enzo, I have been using PPJN for over a decade, and whilst it's good to satisfy that odd bit of curiosity, it mostly contains outdated and insignificant information.
This thread will highlight the realities particularly around take home pay and perceptions of those who are employed. What might improve it a little is if we can all also contribute with a bit of free text and not be constrained by the format too much.
Because of its location it is valueless without context.