Pros: Its a solid mouse. Fits well in my somewhat large hands and has a good weight to it. It takes a couple of seconds to wake back up from power saving mode, but I expect that from a bluetooth mouse.
Cons: I'm not a fan of the Windows button on the side. I just don't find it very useful. I would have much preferred forward and back buttons instead.
Summary: Did not want to load software. Not plug and play on my Dell XPS. Found the work around for that issue and once in operation the scroll function was far from precise. Will be returning this mouse. Not worth the money.
Summary: I simply love this mouse. I do think that the larger your hand the more likely you are to like it. It took some getting used to. Nice to have a mouse that is dedicated to windows 8.1. The ability to hit that little blue button is great. I find it scrolls just fine.