The unit makes a very solid impression. With the bag several 'insoles' various thickness are supplied, so you can use it for other smart phones with the same (or slightly lower) base. The Defy + I can operate perfectly through the film. Genial is the ability to adjust the angle of inclination in 2 axis via a ball joint: one makes a cog on the ball joint on something, makes the bag accordingly (so that the viewing angle is optimal) and rotate the wheel again. Keeps bombproof, on brutal forest trails (I go mountain biking, among others). So far the best overall concept, which I have experienced for a mount, I've tried several. Strong buy recommendation!