This mouse had everything I like: relatively sober, no previous / next buttons (I do not like the buttons), the wheel for horizontal scroll ... but some disadvantages, I will have to reinvest in a mouse soon: - The click-wheel is very hard, you really press hard for it to be "validated". No more clicks to open 20 tabs, now it's open, right-click-in-a-new-tab; - The dark wood Ikea is not of this mouse laser friend, causing jumps or rather random stops the cursor. My previous mouse worked well.
Being a fan of unifying, I would expect that the higher-end Logitech so, presently there are no simple, ambidextrous mouse over it to get married to a K800.
