Goodies: the clip is very possible to accommodate a variety of product sizes, including my two appliances (small and large GPS smartphone). The overall quality is quite correct.
Cons: there are many, unfortunately ... The support is relatively unstable when you drive, and tends to 'let go' when the device (phone, GPS ...) has a weight: for light aircraft, that's OK, but for large smartphones, this is a problem. In addition, the possibilities of installation and product orientation is very limited and that, because of a ball that offers a very low "swing radius" position above the handlebar (as shown) is the only really practical, but very few unobtrusive for those who do not wish to display his GPS to the view of passers Finally, said ball. is rather fragile, barely tight screws, one of the threads broke ... The whole is still holding, but still fragile Beware of too strong tightening, so ....
Considering the defects (relative instability and fragile ball, low positioning options on the handlebars ...), I use it very rarely.
Even for that price, I expected better.