I changed it with rival 105 because the "wheel" button broke, in the case of sensei ten it started pretty soon - about a month or two later - to act up the encoder, which is why it started to accidentally register the scroll'a movement up and down. In search of a solution to the problem, I found it on a video where the encoder was soldered, with the purchase of a part from China, but this, unfortunately, is only a respite from the inevitable. As for the body: a huge problem with strength. If such a misfortune happens and you have to disassemble the mouse, then you should get ready for dancing with a tambourine: with a high probability, due to bad plastic, the thread will fly off immediately, and you will probably not be able to screw the screw back in, so you should come up with something as a countermeasure, like making an impromptu carving out of epoxy or something like that. In which case I will try not to forget to add a review. I hope that such a defect is just a defect