What to say except: EXCELLENT !!!!! I was looking for a discreet and especially efficient car carrier and I found it. The installation on the ventilation grill is VERY SIMPLE (contrary to what some have said). Precision on my car: Grand C4 Picasso. Its adhesive power has nothing to prove, I tested with several smatphones and none finished floor. But we must nevertheless respect a thing, keep the protective film that great care be taken to supply each time you take away his laptop. And whether the film or laptop is a breeze to remove them and put them in place. A small cleaning "sticky" part from time to time and it sticks like the first day. Direct and rotate the notebook with this support is done without asking any question. Moving from horizontal to vertical and vice versa is not rocket science, it obeys without any risk. What, every time I use it, really pleases me is that once my laptop is in place we do not even see the support. It's still something that these big adaptable stuff can be found everywhere .....