This product does everything it's supposed to do in terms of holding the GPS steady, being easy to attach / detach etc.
BUT, the mounting mechanism has proved fragile. The top half is held onto the bottom half by four plastic retaining lugs and a spring. After eight months of very occaisional use one of these lugs has snapped off. I now have £20 worth of scrap plastic.
Would I recommend it - no
Will I buy another - maybe because I want a clamp for my GPS
Will I have a really hard look round for an alternative first - definitely