Whatever paint you use, a few tips.
Don't expect to do a dark color over a light color in one coat. Or any painting you do. Using a good tinted primer, two thin coats and two thin coats of a finish will look best.
The roller alone (1/8" nap) for this will work great, just like it was spay painted, if you have the right constancy paint, the paint will self level. As long as it is not too hot and you use the correct thinner, brushing thinner, it will keep the paint wetter longer. Be aware the thinning of top coat with dull the finished shine.
Once you apply the paint, don't go back over it. Once the paint is applied it starts drying, if you touch it again you will leave a texture.
If you are going to try and use the rustoleum, an oil paint I assume, use Penatrol
and if it is a latex, Flood Floetrol
I am not suggesting you use these paints, but you asked how to make it look right.
One last tip, use a drivers license edge to seal the painters tape and get a clean edge. And don't leave the tape on for over 24 hours, it will start to become permanent.