WILL THE TILE SIZE I CHOOSE LAYOUT EVENLY FROM WALL TO WALL?
Making sure the tile is symmetrical on both sides of the room is pretty important and will likely help you decipher what size of tile you will need to create that balance.
However, if you are working with a bigger space, lining up the edges don’t need to be quite as important or noticeable.
DO YOU WANT MORE OF A DRAMATIC DESIGN IMPACT OR A MORE SUBTLE ONE?
In my observation, the smaller the tile, the more noticeable or dramatic the look you get. It just looks busier with smaller tiles, which might be the goal.
It makes for a busy floor, but the subtlety of the rest of the design choices really makes it feel very balanced and interesting.
WHAT SIZE IS AVAILABLE TO YOU IN THE STYLE YOU WANT?
You may luck out and find the exact color and material in the size you want.
Sometimes what is available on the market or for your budget is different than what you want. You might have to be more flexible.