i have a logitech m-rag97 i got a few years back, and it's still going strong
even with daily use, i only have to charge it once a month or so
never ever had to clean it yet, either
i got it when i got my computer, about two years ago from october
as for added accuracy? i don't pay attention.
it never skips or anything, tho
it's a **** solid mouse,anyways, tho
best quality mouse i've owned to date, regardless of being laser or not.