The delivery was made promptly and a first test was very promising. Screwing on the bottom plate went smoothly, which speaks for clean threads, pinching the smartphones not quite as smoothly ... The upper bearing surface is relatively short, the phone is in danger of slipping backwards and land directly under the metal bracket. However, this is not really a big problem if you do not mind the feigned shooting angle. In addition, the metal bracket should not be too repeatedly with high voltage on the plastic case, I think.
This brings us to point 2: the spring tension is really quite high. This, however, also has good sides, because even if I tend to stand head and thus the smartphone 90 degrees to the front, it is considered reasonably safe.
All in all I am satisfied with the purchase of the adapter, even if the baby is a minimal "wobbly" is every now and then.
Recommended!