Irene
★★★★★
I prepared my Cambridge B2 exam in 6 months and I passed it, so I decided to also prepare the C1 Advanced with Duncan (I also passed in less than 8 months). He is a great professional, strict when he has to be and very understanding.
You can decide how you want the classes to be, so that you learn English in the best way! Also, being a native speaker, he teaches some English culture, which is very enriching! I totally recommend you contact him if you want your English to take off!