Everything, great feel, super light, beautiful design, nice rgb, perfect clicks and scroll wheel and the cable is super unnoticeable because of its weight.

None.

I have had this mouse for a few months and it is working flawlessly. The weight of this mouse is amazing for shooter games and just makes every move of the mouse super accurate. The mouse is so light you can hardly even feel it. I HIGHLY reccommend this mouse.

Lightweight and pretty, until the mice dies and then it goes from RGB to just okay looking.

Very bad quality assurance or manufacturing. I purchased two of these. In the first white matte that I bought, left click button started to get sticky. This started happening after 5 days. Within 3 days, it got so bad that I could reliably work using the computer as the left click with press down but would not depress back up. I went in and the guys in Hamilton exchanged for a different, but instead a black matte model O. Well, this second mouse started loosing USB connectivity according to windows and would just die for a split second and come back to life. Windows sound would register that the USB device was disconnected, when it really was not. And then, it would come back by itself. When it would disconnect, the light on mouse would shut down. This happened randomly a few times a minute eventually. Then within 24 hours, it just died - as in dead, no lights, nada zip.

Avoid it. I will have to go back to using my old Razer for the moment since Memory Express is closed on Labour Day Monday, but I regret spending $100 on this product.

Light Fits my hand well Looks great Lightweight software

Poor internal structure quality

I loved this mouse for the first week. The issues started to show after being broken in. Left & Right buttons become loose and start to rub on things, feeling mushy. The scroll wheel doesn't fit well inside it's mounts (I took mine apart to figure this out), it ends up making a noise when it's spun quickly, the wheel wobbles and hits the edges of what contains it. It was very close to becoming my favorite mouse, but I can't recommend it right now with it's overlooked flaws.

Design, feel, RGB

squeaky wheel

Very nice mouse. Love the honeycomb design and rgb lighting. Software that controls rgb can get you very cool effects. Sensitivity can be changed so gamers to casual computer users will be satisfied with performance. Its light and comfortable. Only problem I've noticed is the center mouse wheel tends to squeak (pardon the pun) but other then that it's a great buy.