This is the stuff that makes a shelf look like yours instead of a showroom's, so it suits anyone with a mantel, a console table, a windowsill that's just sitting there empty, or a rented apartment that needs personality without a paint roller. If you like a totally bare, minimal room with nothing but a single vase and a lot of negative space, some of this will feel like clutter to you, and that's a fair instinct, you just need to be choosier rather than giving up on the whole idea.
Where it goes wrong is piling too many finishes in one spot, so a brushed gold piece next to a chalky white one next to a dark wood carving all fighting for attention on the same six inches of shelf. Pick a lane, let two finishes talk to each other and leave the third one for another shelf entirely. It also struggles near anything with a strong pattern already doing a lot of work, a busy rug or a patterned wallpaper, because then nobody's eye knows where to land. Put the quieter pieces near the busy stuff and save the characterful ones for plain walls and open surfaces where they can actually be seen.
The difference between a good one and a sad one is almost always in your hands before you even get it home. Pick it up. Metal pieces should feel properly weighted, not like they'll blow over if someone opens a window too fast, and the edges should be filed smooth, not sharp enough to catch a sleeve. Wood should have a joint you can't easily wiggle, and a finish that doesn't feel tacky or uneven under your thumb. White ceramic pieces are the worst offenders for hiding flaws under a coat of paint, so check the base for glaze pooling or a wobble on a flat surface. A disappointing one always reveals itself the same way, light where it should feel solid, and rough where it should feel finished.
Small pieces earn their spot on shelves and windowsills year round, while the larger decor pieces do better on consoles and floors in living rooms and entryways, where there's room to actually walk around them. Cooler months are when the metal and wood pieces come into their own, next to lamps and warm light, while the white and ceramic pieces feel more at home in spring, catching daylight by a window. This works in a tiny rental shelf as much as a big family house, the scale is just different.
Next time you're looking at one, pick it up first and feel the weight before you even look at the color.