I bought as a gift for Christmas and the vendor was great and on time. The issue lies with the size and angle of the mouse. While using it for 40 minutes, my wrist cramped and hurt for a few hours. My hands are small and I attributed the pain to the mouse size. Upon further use by my 6'3 boyfriend, he complained of pain in his wrist as well. Very cute, but poor ergonomic design.

I bought this for my elderly parents who have some difficulty using the Apple Mighty Mouse that came with their iMac. Its low profile and pressure areas for buttons gave them hand cramps and misclicks. The Firetiger, with only 2 buttons and a fairly large scroll wheel, is easier for them. The larger size and taller, rounded profile prevent cramping for those with large hands, as well. And the design is amusing.