The 24-year-old Gabon international joined BVB from Saint-Etienne this summer and marked his first game for the club with a hat trick.
The 24-year-old moved to Signal Iduna Park for a reported 13 million euros from Saint-Etienne earlier this summer, and despite noting the greater quality of the Bundesliga, he wasted little time in making an impression at his new club on Saturday.
''It is like a dream for me, an unbelievable feeling. I feel right in Dortmund,” Aubameyang told Bild. “The Bundesliga is much more intensive than the Ligue 1. Here you have much more tempo and I have to work in the defense, but it is OK.
"When we can continue our good work then we will have a great season. The first goal was something special for me, and I wanted to celebrate it in a special way.''
Dortmund coach Jurgen Klopp then believes that Aubameyang can become even more dangerous in the months ahead after his .
''He can do much more. He can hurt the opponents more,” Klopp said.
Aubameyang will have a chance to impress his home fans for the first time in Dortmund's next match, when the club takes on Eintracht Braunschweig on Aug. 18.