no metallic. solid color. it's there but I can't feel it....You may have some scratches show if you're painting with a light metallic.
I'd recommend 600 grit if you are.
A solid color would be no problem.
If the shiny dots are real small (small enough I can't see them in the picture)
and just exist. paint that wasn't leveled all the way you should be alright to go..