I have used poorboys black hole on a number of different cars, but found it made little difference on vw paint and was advised to get Prima Amigo, and it really is very very good, but this is only a glaze, not really a polish or a wax, that being said, it gives really good results to freshly clayed paintwork that doesn't really require any correction work, but just some filling.
As to wax, I am currently using either ODK Glamour or Victoria wax. Both easy to work with, however, I do find the odk a little easier to remove