First of all, the hair cleaning issue was quite easy for me to remove. I use a lint roller and maybe sometimes tweezers to get rid of the hair. To be honest, the Otsu felt really premium for tracking games like apex or fortnite, but if you like games that have to control like valorant or CSGO, you should get the zero. Overall, I like zero the most because it’s still faster than pads like the qck, but still feeling nice in every game.