First it recharges very quickly, in less than an hour for me.
It can be taken anywhere because it is very compact (its iPhone enforcement system bends to fit the stick and takes up less space) - barely 15 cm overall.
It is very lightweight, and easily slips into a pocket or small bag.
At use, the pairing is very easy, and it reconnects immediately to the iPhone if you have already taken care of the pair at home.
The introduction of the iPhone on the system is very fast, and the firm support and you do not lose your precious!
Moreover, a tight strap around your hand, you can prevent the stick from slipping from your hands and you lose your smartphone and the stick.
A click on the button and the picture is taken, ditto for the video.
Note that you can also separate the stick of the iPhone, for a group photo (when you're ten, there is not always enough distance, and it is then a remote control, you have to ask the iPhone on a carrier). Finally, I sometimes use the rear camera of the iPhone, which gives better photos. For this, I simply return the iPhone, and by habit, one quickly comes to find the right framing, at worst you do a few more pictures and voila, in several positions, one is sure of have good on film.
One regret: no battery charge indicator, so we refill it regularly (however you see on the iPhone charging of the stick, but this requires connecting to the iPhone to find out, no direct indication ).
In short: the best stick I've ever had.