After making a decision too quickly, we scraped out all the grout from the floor tiles in an entire room because, no matter how you look at it, it simply wasn’t visually appealing. The effort taught us a lesson.
I find tiles especially extremely difficult to truly assess in terms of their effect beforehand. It’s not so much about the tile itself that you see in the showroom, but rather about the impact of the combination of tile size/color/texture with the laying pattern and grout color/width. And you simply can’t view that 1:1 beforehand; it requires imagination. Because of the grout color being too light, we had an extreme grid pattern that dominated the entire room. Now, several shades darker, the floor appears very harmonious.