I am comparing this to the top-of-the-line Razer Naga Epic and M.O.U.S 9 when I say this is the best gaming mouse I've owned. It just gets everything right, from the excellent responsiveness and reception range, macro management, tilt scroll wheel, on-the-fly DPI adjust, and an ambidextrous fit for those of us who are just as good with both hands! Everything is top quality, right down to the braided USB cables. Works flawlessly on every surface I tried. Additionally, the rechargeable battery lasts for days of high usage, and there are TWO of them. So you just swap to the other battery that is charging in the dock and carry on – this thing is always wireless! The packing is even impressive, with hard and soft cases you'll want to re-use. Seriously, this mouse rules. Awesome work, Gigabyte!