I followed lessons with Geert for three years as part of my Internal Medicine training program in the Netherlands. She has a very pleasant and clear way of teaching, and she manages to make even difficult internal medicine topics much easier to understand.
Geert always takes the time to answer questions properly, and nothing ever feels like too much trouble. Her presentations are clear, well structured, and contain the information you really need in practice.
What also stands out is how passionate she is about internal medicine. That enthusiasm makes her lessons enjoyable to follow, while at the same time giving your knowledge a real upgrade. I have always really enjoyed learning from her.