The Fuginator is the first and only brush with which we got these joints clean again, along with Lithofin FZ Intensive Cleaner Lithofin FZ protection and impregnation.
However, the bristles are after a complete passage (about 15 square meters) worn, and the surface of the tiles you should still take a normal brush, otherwise you have then clean strip around the joints around and dirty middle parts. Still, going with this brush's - and the price is a bottle of the Intensive Cleaner, because I like to take into account that I need every year a new ...