My first pair of white boots were a bit stiff, a bit shiny, more plastic than leather, and scuffed along the toe within about three wears. The lesson wasn't to avoid white boots, it was that cheap white shows every scrape in a way that cheap black just doesn't, so the finish matters more than it does in almost any other colour you'll buy.
They're a spring and summer boot more than a winter one, in my experience, which feels backwards given boots usually mean cold weather. They look brilliant against bare legs, with a dress in that slightly chilly bit of April when it's too warm for tights but too cold for sandals, and they carry a holiday wardrobe well too, especially somewhere dry where you're not wading through puddles or grit. Wet pavements and proper winter mud are where they struggle. Road spray goes straight up the front, salt from gritted paths leaves a grey tidemark that doesn't shift easily, and anything with a suede or canvas upper will take on water in a way that leather or a good synthetic won't. I wore a pair through a wet October once out of sheer stubbornness and they looked done by November, properly done, not characterful. If you want them to last, keep them for the months when the ground is mostly dry.
On the clashing front, be careful with anything else bright or busy happening below the knee. White boots next to a loud print skirt or patterned tights usually ends up looking like two outfits had an argument and neither won. They sit best with something fairly calm above them, denim, a plain dress, block colour, and they do a lot of the talking themselves so they don't need competition. As for finish, a slightly off white or bone shade is far easier to live with than stark white, it hides the first few marks and doesn't scream for a clean every time you wear it. Matte leather or a leather look ages better than anything glossy, which shows scuffs almost instantly and never quite looks right again once it's lost its shine. Cream, ivory, that chalky off white, all forgive more than true white does, and none of them look any less sharp for it.
Try them half a size up if the style has any kind of block heel, since white shows pinching and bulging at the toe far more obviously than darker leather ever does.