I would leave it, as it appears to have a decent finish to it, and painting the intricate details would be a pain. I'm also generally prefer stained wood to paint, though. Painting it nutmeg seems like a lot of work to still have a brown piece, and you'd likely lose some of the detail in the monotone. Slate is at least changing color families, though consider the hardware if you're changing the color, and is the scroll work wood or metal?

I wouldn’t paint for the reasons Blueberry says. Perhaps, as Blueberry says too, change the knobs. Or, maybe just paint the scrollwork. I’m not saying I dislike this piece - just that sometimes little changes make a big difference.