My one regret with the black island is that I chose a shaker door without a bevel. Those little corners are hard to clean and the black shows everything! If I could do it over I would still do a black island but it would be a stained wood, painted black and then distressed. That way any nicks and bumps show wood and not a white chip. We are considering changing that down the road.

Following as I am painting my walls Simply White. I am doing Aura matte and wondering if trim should be the same in a semi gloss. My doors will be black.

The same color in matte in fact that is also the finish I would choose for walls.

First I would do the ceiling the same color as the walls I like matte for walls and ceilings and then a satin for trim as for the cabinets they will need to be done by an actual cabinet refinisher with conversion varnish so you can go the same color but they will look a bit different every time you change the sheen the color catches the light differently so keep that in mind. I am not sure why the cabinets need painting , I actually love the way the paint is now in the house.