A metal table is the one that holds its shape no matter what gets put on it or dropped on it. Dining tables in metal take the nicks of forks and hot pans without flinching, coffee tables take boots on the edge and drinks set down without a coaster, and a metal set in a kitchen or a patio corner just keeps standing up straight through years of actual use. It's furniture that does a job first and looks good second, though a good one manages both.
It sits well with wood floors, leather or linen seating, plants, anything with some texture to soften the hard edge of the metal itself. A metal dining table with wood chairs around it is one of the easiest combinations in furniture, and a metal coffee table under a soft sofa reads as grounded instead of cold. Where it goes wrong is in a room that's already full of hard surfaces, tile floors, glass shelving, a leather sectional, because then you've just built a room with no give in it anywhere, and it starts to feel like a waiting room instead of somewhere you'd want to sit. It's also not the move if you want a table that absorbs sound and clutter visually, metal shows every crumb and every water ring in a way a busy wood grain hides for you.
Finish is where the cheap and the good split hardest. A thin matte black or a bronze with some variation in it ages fine, scuffs blend in and the thing still looks intentional in five years. A bright chrome or a flat painted finish with no texture shows every scratch like a scar, and once the paint chips on a corner that's it, you're staring at bare metal for the rest of the table's life. Warm metals, aged brass, bronze, blackened steel, are far more forgiving in daily use than anything shiny or stark white. For sizing, measure the space the way you would for any table, but give a metal one a little more breathing room than you think, because the visual weight reads heavier than the actual footprint once it's in a room. Leave at least three feet of clearance around a dining table for chairs to pull out, and for a coffee table, measure from the sofa so there's still 14 to 18 inches to the nearest edge. The common mistake is buying one sized for a showroom floor and finding it swallows a smaller living room whole.
I'd put this in the kitchen first, the room that takes the most daily punishment and rewards a table that doesn't care.