Pros Versatile, Long Battery Life
Cons None so far
Summary Does exactly what it says.
Pros Battery life. Customizable software
Cons Heavy, poor ergonomics.
The cursor movement is jerky
The scroll wheel is unstable and moves as you are working
Works poorly on fabric.
Summary I bought this to replace an ageing LG CM - 300. The mouse is heavy, poor ergonomics. The cursor movement is jerky, perhaps due to the fact that the sensor is sealed at the base.
The scroll wheel is unstable and moves as you are working moving the page. And yes, it works poorly on fabric.
I like a good mouse and am prepared to pay a premium. This mouse It costs 3 times more than my LG. Apart from the cost, this is very poor product.
I have gone back to the LG. I will buy another after it dies. M515 mouse is just terrible.
Pros Sealed sensor
multi-surface pointer control
Summary I purchased this to replace an older MX mouse. After a few hours of using the mouse, my hand hurt like there was no tomorrow. I thought the sharp pains it caused in the top of my hand would never leave. The ergonomics on this mouse are terrible. I would not recommend this.