There's a specific moment at the end of a long day when I drop into the black chair at the end of my table and just sit there for a second before I even think about dinner. It doesn't show the day on it the way the pale one two seats over does, the one with the coffee ring and the crayon mark that never fully came out. Black just absorbs the mess and keeps looking like it did on day one.
The gap between a good black chair and a bad one shows up fast, usually within a year. Cheap ones are sprayed, not finished, so the color sits on top like paint on a model airplane and chips the first time it gets dragged across a tile floor. A well made one is either stained all the way through solid wood or powder coated metal that's baked on, not sprayed, so a scrape just reveals more black underneath instead of bare wood or bare metal. Joints matter more than people think they will. Pull up on the seat of a cheap chair and if the legs flex even a little, that's glue and dowels doing a job screws should be doing. A chair that's actually built right feels like it's one solid piece when you lift it, no creak, no give. That's the one that survives a toddler standing on it to reach the cereal, which mine has, twice.
Black works best in rooms that get a decent amount of light, because it reads as crisp and grounding there instead of just dark. Small apartments, kitchens with white or pale cabinets, home offices, modern dining rooms, all good homes for it. It's also forgiving in a way light wood never is, so if you've got kids or pets or just a habit of eating spaghetti standing up, it hides more than it shows. Where it falls apart is a low ceilinged room with dark walls and dark floors already, four or six black chairs in there and the whole space starts to feel like a waiting room for something unpleasant. One or two is a choice. A full set in a already dim room is a mood, and not a good one.
In an ordinary room it sits best next to things with some warmth to balance it out, a light wood table, a rug with some texture, brass or warm metal hardware nearby, pale walls. It plays well as contrast, not as the whole statement. Put it against too much other black and it just disappears into the furniture equivalent of a shadow.
Mostly what it does is make the room you already have look a little more deliberate, like you meant to do that, even on the days you absolutely did not.