I have a new thin Ultrabook and I wanted a thin mouse to go along with it, so that it would all fit nicely into my thin case. It just arrived and I find myself feeling comfortable with it right off the bat. Now...let me comment on the most common issue that reviewers have raised. Are the buttons hard to push?To me they're, more firm that average and I'd prefer them to be easier to press. But, it's far from being a deal-killer. As well, as one reviewer said, if you place your fingers so that they're extended out, instead of cupped, the press sensitive is actually normal.UPDATE:Been using it for several hours. I have medium sized hand and I have no problem extending my fingers to the "sweet spot" button press area. So really, the button thing is becoming a non-issue for me. 

Question: How big is your hand?
Answer: I have medium sized hand