Summary: So I had one of the Microsoft Bluetooth Notebook Mouse 5000, and I loved the thing to death. Most of my friends would be confused by the size, as I'm an avid PC gamer, and it's a reallyy small mouse. I personally loved it though. Then the left click became really spotty. Granted, it was entirely my fault, after dropping it several times, and tossing it in overnight bags without a case or anything else to protect it.
Summary: Great product, very small, good battery life and works on almost any surface. My only complaint is the that clicker is very loud, which is a problem for those who use it in quiet areas such as classrooms or offices.