We are a family of 4 with 2 teenagers who are very interested in History. I chose Matthew because of his high ratings and long-time experience in Berlin. We really weren't disappointed - we enjoyed 2 tours on consecutive days with Matthew and Marcus his driver (who was very interesting also). The 1st shorter tour was largely about Berlin before WWII - v interesting. Matt's knowledge & his very well stocked iPad were perfect - there was always a photo to accompany the commentary.