Summary: Still going strong and takes a beating after all these years so I am quite surprised. Logitech makes some nice mice but none have outlasted this thing. I never like to say anything nice about Microsoft but some of their gear does stand strong.
Summary: Very underrated piece of equipment. While not perfect, has fit my needs for a year and a half, only basic maintenance needed. Wiped off as normal, stripped down to components and thoroughly cleaned only once in 1.5 years. Hard pressed to beat this mouse for a reasonable price vs your needs.
Summary: Put about 2 years of gaming on this mouse, and is still working great. DPI on the fly is a nice feature, but buttons are in a unatural place to reach (in the palm of your hand). No issues here unless you're planning to go hard-core FPS.