Most bathroom upgrades are forgettable. A new mirror, fresh paint, maybe a soap dispenser that matches the towel rings. But the moment you install a properly chosen agate wash basin the whole room shifts. People notice it.
Let's talk about something nobody warns you about when designing a bathroom: moisture damage. You pick the perfect tiles, install that rainfall shower you've been dreaming about, and six months later? Water stains. Mold creeping along the edges...