A macchiato tastes similar to a cup of coffee with milk added.
If you've ever had a cup of coffee with some added milk it tastes about like the cup of coffee and milk but with more milk and cream added to it to make it frothy.
When you order a macchiato the macchiato drink is served hot.
However you can order a macchiato as a cold drink or a hot drink.
If you want a cold macchiato you can tell the barista that you want the macchiato cold and they will make the macchiato cold.
But for a hot macchiato it usually comes that way.
I love my macchiato hot but tried it cold before on a hot summer day.
When it was hot outside the macchiato was pretty good cold but on cold winter days I love my macchiato hot.
Hot drinks are what I prefer on cold winter days but on hot days it's good to drink cold drinks.