The Kensington Pro Fit® Full-Size Mouse USB has an ergonomic, right-handed shape with a soft rubber grip for all-day comfort. It features a high-definition optical sensor with a pointer speed quick-select button for enhanced productivity. It has the plug-and-play reliability of a wired USB connection. And it is built to last with a 3 Year Warranty. PC and Mac compatible.
I'm one of those guys that refuses to have a wireless mouse on my desktop PC. I never want to have to deal with a mouse waking up and possibly lagging while in use. And since I'm on my PC at work for 8+ hours a day I want it to be comfortable. So there's the preface.
I've been using this mouse for a few days now and it works well. If you're coming off a logitech it definitely feels wider. I haven't fully adjusted to the width yet but I assume that I will in another week or two. I do really like the click button that adjusts the speed of the pointer. You likely won't use it more than once or twice but if you need different speeds for different apps/games i could definitely see this function being super useful. The buttons are satisfying to click and I do like the grippy feeling around the tumb area.
Really the only think keeping it from being a 5* for me are it's a bit too wide for my taste and I'd like the grippy rubber stuff on both side. Don't let the 4* scare you away though, I'm very happy overall.