My wife and I had three two hour lessons with Ralf around the Flims resort.
Neither of us had skied for two years due to covid. I have had a knee replacement and my wife is a nervy skier who has had several instructors over the last 6 years.
Ralf was a fabulous instructor, found different methods that resonated with us individually and most importantly to us, has a sense of humour.
I have no hesitation in recommending Ralf as his knowledge, teaching style and personality make it an enjoyable experience.