Matthias Gretemeier is a certified and experienced instructor. His classes are well organised and planned. There is a clear purpose with all elements in the class, and he emphazies the importance of warming up, as well as streching. He sees all his clients and provide good supervison to the gruop as well as individually. He particiaptes actively in the classes, and is through that providing motivation to the group as well as clear instructions. His focus on technic is particularly important, for avoiding any damages. I highly recommend Matthias Gretemeier as an instructor.