The disadvantages are unpleasant, but not at all critical. It is important for me that the mouse always works, without signatures, a trembling cursor (especially when working in Photoshop) and other troubles. Its merits greatly outweigh, therefore, left the maximum rating. Pros: 1. Autonomy. The charge is enough for 3-4 days. When a few hours remain, the red indicator starts blinking, you insert the cable and just continue working with the wire for 1.5 hours. In a compartment with an adapter, you don’t notice the fact that you need to charge at all. 2. Sensor. No complaints. Never had any crashes or lags. Has some cons: 1. The quality of the plastic. The plastic looks cheap and apparently it is, because when I accidentally pushed it off the table onto the bedside table that stands nearby (the fall height was 3-4 centimeters), there was a scratch on the mouse at the place of the fall. The much cheaper wired predecessor has survived over the years of its service and is not like that, but looks like new. 2. Design. Why right-handedness is needed is a mystery to me personally. When switching to this one, I did not notice any special sensations from the new grip. But for example, if you eat at a computer and your right hand is busy, then clicking somewhere with your left, switching something is already noticeably less convenient. 3. Official software. If you have lags in games that you didn’t have before, it’s most likely because of him. Paradoxically, but true. Fortunately, when the program is turned off, all settings in the mouse are saved, and the lags disappear.