The mouse makes a very robust impression, which is important especially during long and regular gambling of course, since the material is quite demanded. The workmanship is typical of Logitech, very high quality. Even the cable is designed so that it represents the lowest possible resistance when driving the mouse. The coating of the bottom ensures that the mouse on almost any surface, but at least on all major mousemats almost slides as if by magic. In contrast, the palm rest areas are designed so that there is a slip is effectively prevented. The ergonomic shape does to deny rest to get even longer matches without fatigue. Who really has big paws, for like the housing may be slightly too small, although you can certainly get used to it. For average-sized hands, the size is just right. The scan is very precise, the mouse responds immediately to the slightest movements. The mouse wheel also allows a precise work and good tack. Even if the part has a plurality of keys, these are positioned so that an unintentional operation is excluded. You've come to the right place. They are active all smooth enough to be able to click without tilting and heavy enough not to accidentally click. Also hard time clicking orgies take the keys out without that this will change anything. The balance weights are a nice gimmick, which is perhaps interesting for hardcore gamers. I am without the weights very happy with the handling. The edgy, futuristic look combined with the matching lighting is certainly a matter of taste. I find them very appealing. The part has me quite a few kilometers and many hours use behind it, and has neither deficits nor sacrificing precision. Who reliable working (or gaming) studied part, is hereby served just right.