[Buddhaheart]

I have to agree with Bianca that ‘I'm feeling good’ or 'It's a very good done job’ is bad English. However, I don’t see anything wrong with ‘I'm good’ since ‘good’ here modifies ‘I’ as an adjective. Cf. I’m happy; I’m fine.

I am also inclined to agree ‘good’ in ‘good-paying jobs’ modifies ‘paying’ which in turn modifies the noun ‘jobs’. ‘Paying’ is therefore an adjective and ‘good’ functions as an adverb and hence it should grammatically be ‘well’.

Some examples: Well-made car; well-run engine; well-priced item; widely-read book (not*wide-read book); hugely-taxing job (not *huge-taxing job).