Totally worth it, and very versatile.
I have a dashcam with an oddly-shaped case. The windshield mount provided didn't provide enough clearance for the power and backup camera cables which led me on a search for a better mount, and that's when I found this top-seller.
GOOD: Aside from the price, what really caught my eye was the telescoping arm, something I hadn't seen on a mount like that before. Not only is the arm extendable, but the pivot has divots that enable you to feel when it is being tilted.
The "hand" of the mount has extendable grips the open in unison as well as an adjustable side support to keep your device secure. The back of the hand is your typical ball-joint which is greatly flexible, although you can't pivot the hand 180 degrees in all aspects (nor should you need to).
The windshield mount has a push-button lock which provides a stronger grip than those which you simply moisten and stick on the windshield.
BAD: As I bought this to secure my dashcam, it did not fully hold it in place. In some aspects it could, but I know that if I were to hit a bump, the fingers would drop the dashcam. Keep in mind that my dashcam is not a perfect rectangle, and instead it's body has a roof-like flange from the rear causing it to not fit securely. As long as you use a typical cellphone, mp3 player or GPS device here, basically a nice-shaped rectangle; rest assured your device should be VERY secure and in place.
CONCLUSION: I can see why this is a great seller, and I'm happy ot own and use it. I had purchased a static windshield mount that has an arced mount, but quickly I broke the mount by overtightening it. Thankfully the "hand" with the ball joint was interchangeable with this unit. Now I'm able to use the ball joint mount with the flat surface, apply the surface to my dashcam, and apply the entire mount to my car.
Verified purchase: YesCondition: New