As such, the suction is pretty good. Have to keep for many weeks at the wheel and he still holds. So far so good. Problem is that - no matter how I around my Google Nexus 4 introductory - the Lautsärketasten and / or one-button are pressed. If you want to prevent this in the one the Nexus 4 further pulls out, then it's all about to fall out.
Conclusion: For a few exceptional inserts ok for the price. Continuous operation with Nexus 4 very bad.