In 2017, I came across the UXperten for the first time through research and decided to take the Design Thinker certificate course. The content taught was practical and comprehensible in every respect, so that I could immediately implement the acquired knowledge in my professional practice. So I didn't hesitate for long and after passing the exam, I took the User Experience Manger in mid 2018 and the Usability Engineer at the end of 2018, also at UXperten.
A few years later, I can say that I still benefit from the courses and would choose UXperten again at any time. So I can only recommend the courses to everyone!