It is really easy to apply. I used a paint brush to apply a liberal amount to the joint then rubbed along the joint a few times with a toothbrush to work it into the joint. After about 10 -15mins a damp sponge off, which removed any residue from the face of the tile but left the joint perfect. Rarely am so impressed with such a product.
The Mapei Fuga Fresca comes with a bottle not too different to those shoe polish tubes you can get with a sponge aplicator ion the top of the bottle. If I had a fair amount to do with the Mapei then I think I would dispense with the sponge and use the same way as the Aquamix.