Rear Diffuser Gloss Black

Wing Lun

A3 Sportback
I want to ask has anybody painted their rear diffuser gloss black? The OEM ones are the grey abs plastic and I feel it needs a shine to it :yes: I know this does not appeal to S-Line trim.
I've been quoted £150 for the respray, however what do you think, is it worth it or will it look good?