Yes, I agree. Because I live in a big Canadian city, I was assigned to our Cancer Centre right at the start. It's part of a larger interdisciplinary hospital network associated with a medical school and research, so I've had quick access to other facilities (like a heart institute) when I've needed it, and a patient-support line to discuss any symptoms or concerns with an oncology nurse between appointments.

I can't emphasis too strongly how valuable it is to get under the care of what the Americans seem to call a "Center of Excellence" (see, I even used your spelling! 🙂). That way, it doesn't all depend on one relationship with one doctor — you're part of a huge network of care and research.