It is with some trepidation that I bought this product to those seen negative comments.
I use it 2 times a day for 1 hour and this past week. Until today, no problems.
Yes, of course, the subject looks fragile. But for the price and ease of use (one only has to tighten the clamp on springs to secure the phone) I must say I am more than satisfied with the product.
Many greetings,