Metal desks used to mean one thing: a gray or beige box from an office liquidation sale, the kind with a drawer that stuck and a modesty panel that dented if you looked at it wrong. That version is mostly gone. What's replaced it is lighter, better finished, often paired with wood or laminate tops instead of being metal top to bottom, and it looks like something you'd actually choose rather than something that got assigned to you. That shift has been a real improvement, not a cosmetic one.
These work best in rooms that get used hard, a home office that doubles as a craft table, a kid's room, a corner of a basement or garage that's been converted into a workspace. They suit apartments too, especially rentals, because the steel frames tend to be lighter to move than solid wood and they don't scuff the way a soft wood edge does when it goes through a doorway at the wrong angle. Where they fall short is in rooms you want to feel soft or formal, a study meant for reading by lamplight, a bedroom where you want warmth more than function. The cold finish that makes them practical is the same thing that can make a room feel a little clinical if everything else in it is hard surfaces too.
Put a warm wood chair with one, or a woven rug underneath, and the metal stops feeling institutional and starts feeling like a deliberate contrast instead of a leftover from a supply closet. A lamp with a fabric shade does the same job. The desk holds the line and lets everything else soften it.
For sizing, measure the actual wall space and leave at least 30 inches of clearance behind the chair so you're not climbing over the desk every time you get up, and check the height against your chair before you buy, since metal frames don't flex the way a slightly undersized wood desk might. The common mistake is buying one sized for the showroom floor and not for the actual corner it's going into, so it ends up jutting into a walkway. The other mistake is assuming the top will be as durable as the frame. Steel legs shrug off years of rolling chairs and dropped staplers. Laminate or veneer tops scratch and water mark the same as any other desk, so a coaster for the coffee cup still matters.
If I were starting from nothing, I'd go with a black frame. It hides scuffs, pairs with almost anything you add later, and doesn't show its age the way lighter finishes eventually do.