The mouse is very smooth and easy to use
Was the mouse you had perfectly good?
I was looking for an ergonomic wireless mouse and I purchased this one after all the positive feedback. Boy was I happy I did! The mouse is very smooth and easy to use. It comes with easy to use software so you can set the buttons to whatever you like. I just use the defaults though.The recharging cable is Micro-USB so when the mouse battery dies you just plug it in and keep going! I like the rechargeable battery so you don't have to stock up on batteries.  Also, it comes with a Wall-to-USB adapter so you can charge the mouse in the wall if you don't have a USB slot available. It also works when plugged into the wall.The best bonus I wasn't even aware of is the screen toggle button located in the thumb area. It minimizes all the windows on screen into miniature and shows them all so you can switch your open windows with ease.I would highly recommend this mouse to anyone. IN fact I am buying a second one for my husband! 