The quality is decent, but the touch ... no! Finally, if the screen is unlocked, it will. If it is the contrary in standby, press 2 times on the screen NEVER walk and the physical button press release is not, but not at all practical.
Consider also that a round 30cm arm is really small. Very very ... I'm 31 and ... well it's very uncomfortable.
I expect a gesture of goodwill, but I have my doubts.