The Flexi handle can be ripped out of his hand finally by surprising overtightening the dog times.
Another reason why it is good that in this model by the wide grip belt when necessary, it is quite safe to do to grab the belt in addition directly.
The length of 5m require for the "walk around the block", particularly on the road with car traffic along when it would be downright dangerous, further omit the dog, because with longer leash he could otherwise eventually reach front of the car.
The longer flexi leashes are against it ideal for the walk through the fields and meadows.
Could be improved - for smaller hands in any case - the excessive distance between brake knob and locking knob. Without Zuhilfenehmen the other hand it is in fact difficult to achieve the locking knob, because he is somehow too far forward. In the other two aforementioned lines is better solved because the apply the brake works well with one hand and thus faster. Sometimes this has to happen very quickly, for example to shorten the line when approaching a fast moving cyclist in no time and can be locked.