Great mouse, feels good in the hand, very responsive, love how easy it is to recharge (basically just turns into a wired mouse for a bit), the software offers plenty of settings and is easy to use. The left and right mouse clicks require a bit more force than normal to click, I assume this is an intentional design decision to prevent misclicks from gamers that rest their fingers on the buttons (like me) instead of hovering their fingers over. It's taken some getting used to but is probably the best overall design.There's a strange bit of flex in the plastic covering of the mouse that causes some vibration in the pinky side of the mouse, not a big deal but just creates an odd feeling when you squeeze the mouse (like when you pick it up to move it). Not sure if this is a design issue or just a weird thing with my particular mouse. I'd only take off a half star for this if I could, it doesn't affect the performance of the mouse at all but just is an annoying thing that can make the mouse feel "cheap" even though the rest of it is totally rock solid.Updating this review to 5 stars, the mouse is still going strong after years of heavy use. The issues with the stiffness of the clicks and the mouse chassis feeling loose have completely gone away, I guess the little fella just needed some breaking in.