At first, the mouse makes a good impression. The set comes with a replaceable set of legs and microfiber for wiping. The mouse itself looks good and one might even say cool, largely due to the unobtrusive backlight. The keys are very comfortable, they have a concave shape and the fingers lie on them like in a cradle. The sensor is pretty fast. The roller is quite soft and silent. The coating on the back of the mouse (upper surface) is a high-quality soft-touch, thanks to which the tactile sensations are very pleasant. However, these sensations are overshadowed by the fact that on the right side of the mouse there is a ledge-rib on the very edge of which, with a normal grip, the ring finger lies. This edge is quite sharp - you won’t be able to rub your finger, but it’s completely impossible to call the grip comfortable. This is the constructive miscalculation that I mentioned. But the saddest part is the poor build quality. After a month of extremely careful use, I began to notice significant backlashes (however, they could be from the very beginning). The roller dangles from side to side - a stroke of about 2 mm. The side keys dangle in all directions within 1 mm. For such small details, this is a significant backlash. This is not to say that during work it causes severe discomfort, but it is noticeable. In general, the mouse is a typical Chinese noname. It is produced not only under the A4tech brand. Of course, the cost is by no means high, but for the same money you can buy something from the X7 series from A4Tech, for example, the TOP 747th. Which I recommend you do, since the 747th in terms of consumer qualities is much more interesting than this model. I haven't used the rest of the Bloody series mice, but I guess you should expect the same level of quality from them.