The complaints about no instructions are unfounded. Buttons have no pre-/post travel, light actuation, easy to reach. I?m fully aware this is a middle grade book but that doesn?t mean you have to skimp in detail. I have worn them all day and they are comfortable but I have not had the chance to wear them all day walking about - which I have done in my original pair. I wore them two times so far at Halloween events for 4-6 hours each time. I got this for my husband for his birthday he loves it ! I will say that wearing them for hours at my desk starts to hurt a bit. Conclusion: for $60, the ROCCAT Burst Pro provides an excellent claw grip mouse that rivals the Endgame Gear XM1 and other ambidextrous lightweight gaming mice. All in all, not a good product to spend your money on. Buy this skirt!