Professionalism, knowledge and charisma, these are the first 3 characteristics when I think about Mr. Duller. No fake illusions during his course, just a lot of information to feel more secure when it comes to a private jet interview. His course is the key to executive aviation, but the secret behind his name is the follow-up. He has guided me with the perfect CV and after my first interview the number one person I wanted to contact to tell my feelings was him!

Francesca Rota