A good reverse design mouse is one that is ergonomically designed to reduce the strain on your wrist and arm, and to help prevent or alleviate repetitive strain injuries such as carpal tunnel syndrome. In a reverse design mouse, the buttons are located on the top of the mouse, which allows your hand to rest in a natural position, with your wrist and forearm in a more neutral position.

Comfortable grip: The mouse should be comfortable to hold, with a shape that fits your hand well and doesn't cause any discomfort or cramping.

Easy-to-use buttons: The buttons on the mouse should be easy to reach and operate with minimal effort.

Ultimately, the best reverse design mouse for you will depend on your individual needs and preferences. It's a good idea to try out a few different models and see which one feels the most comfortable and easy to use for you.