For years I put every plant on the floor or shoved it in a corner on whatever box was handy, and half of them sulked from being too far off their light or too close to a cold window. A stand sounds like a small fussy thing to fix that, but getting plants up to the right height, turned toward a window instead of away from it, made more difference than any fertilizer I ever bought.
Where a stand is the wrong call is anything truly heavy, a big old fiddle leaf or a citrus tree in a glazed pot, especially on a tall, narrow, tippy design. Those want floor level or a wide, low base that isn't going anywhere, because a top heavy plant on spindly legs is a disaster waiting for a curious cat or a toddler with opinions about balance. A stand earns its spot with small to medium pots, trailing things that like to hang a bit, or a cluster of plants you want at staggered heights near a window, not as a load bearing solution for something the size of a small tree.
On finish, the ones that are easiest to live with over time are wood tones that have some variation in the grain, plain black metal, or a natural unfinished wire that's allowed to go a little dull. Bright white wood stands show every water ring and soil smudge within a season, and a cheap brass looking finish will flake before the year is out, which nobody warns you about in the shop. A honey or walnut wood stand hides scuffs the way a worn kitchen table does, and black iron just disappears visually under the plant, which is really the job. When you're in the shop, check the joints where the legs meet the top, give it a gentle twist with your hand, if it racks or wobbles at all on a hard floor it will be worse on carpet. On delivery, check the feet are level and that any screws or dowels are actually tightened, not just started, a lot of flat pack stands arrive with everything finger tight and call it done.
The good ones get better with a little wear, a water ring here, a bit of dust worked into the grain there, until the stand looks like it grew up alongside whatever is sitting on it rather than being bought to match.