I use the holder on my bike and am very happy with it so far. The part is designed, robust, compact and encloses my S2 safely and accurately (also works with a "thick" 2000 mAh battery). The Bedinung does not suffer. However, I have to agree with the other reviews in terms of the cut-out for the charging cable: The square USB charging cable does not fit into the round hole. (But there's also a point deduction). Remedy is only one file (not so nice) or the purchase of a suitable charging cable (you can buy on Amazon). Conclusion: very worthwhile accessories