This mouse is great. It's very light-weight, visually pleasing, functional, and it feels very premium. The specs are decent, performance is usually great, and the shape is good in my opinion. It has switches that take a little more force to activate than previous Glorious mice, but the benefit from these new optical switches is that they are about 5 times as durable the ones on the original Model O / Model O Wireless. The mouse-feet are high quality, but on some mousepads they aren't quite as smooth as on others. The mouse rarely needs charging, but when it does, you can still use it whilst it's plugged in. The charging cable is smooth and convenient too, it will almost never get badly tangled and it shouldn't become deformed or hardened like other mouse cables. The sensor has no issues and feels very precise, the scroll wheel feels very satisfying and the side buttons are also nice. The surface of the mouse is a little bit grippy too, so that might be something you like. One of my only issues that I had with my mouse was getting it to work wirelessly and with the Glorious Core software. This problem was easily fixed, thanks to Glorious's fast and helpful support team. I contacted them about my problem and they fixed it only hours later. Overall, this mouse is great. I recommend this if you have the money. My mouse came with no physical build quality issues at all, and I think this is possibly Glorious's best mouse to this day. I would have rated 4 stars if the clicks were lighter and if the mouse worked more easily straight out of the box.