Frau Kassner is an outstanding trainer, and I would highly recommend her.
I began training with her over 2 years ago, with lower back pain so intense that I could not sleep, despite having visited chiropractors and sports-medizin specialists in Düsseldorf. Frau Kassner knew exactly which exercises (through pilates and bodystyling) and muscles to target, and after several months my back pain was completely gone, I had a stronger,toned stomach and my posture already much improved.
Frau Kassner is always professional in her approach as a trainer, giving each student individual attention and motivation to improve - her courses have been absolutely a pleasure!