The Spain U21 international says he already feels settled in Germany.
"Yes, I think Germany is a good league. The Bundesliga is ideal for getting minutes, adding experience and growing as a player," Mayoral told Marca.
"The Bundesliga is a good league. Many Spaniards are coming to grow, like me. I think after the Spanish Liga, it is one of the great world championships.
"All the stadiums are full, people are very encouraged and the country is very beautiful. I think everything is fine for the adaptation of the player."