I got this mouse with the hope of having more control with my right hand. More buttons that I could program. It's not a bad mouse, but could use some redesigning. I actually prefer my original wireless mouse. the Logitec
Logitech MediaPlay Cordless Mouse- Blue. It has two easy-to-target, programable, thumb buttons, and two not so easy to target dedicated volume control buttons. It also has next song/ last song control on the right.
The Sidewinder has two easy-to-target, programable, thumb buttons, and one difficult to target dedicated button. Most of the buttons on this mouse are already predetermined. You have Left, right, and center click, as well as scroll wheel (which is also the center button) that has left/right tilting, and two North/South thumb buttons. You also get a hard to hit thumb button (not sure what it does yet, but it's not programable), and 3 sensitivity setting buttons under your palm along with a second power button. So, in total you get 5 programable buttons (3 finger, 2 thumb). I was hoping for more.
The mouse itself is a bit bulky. I like to hold the mouse with my fingers, and do broad movements with my forearm, and fine movements by resting my palm on the table and moving my fingers around. So I like a little play between the mouse and the boney part of my palm. This has none. It's made for people who like to hold the mouse firmly in their palm.
It's also a bit heavy, and has 3 different feet you can switch out for your style of sliding around.
It's rechargeable.
The sensitivity is a bit strange as well. The left/right sensitivity is a bit less then the North/South. I find that I have to do broader motions to look left and right, but only a slight movement up, will have me looking at the ceiling. This takes some getting used to.
If I re-designed this mouse, I'd make it lighter, less bulky, move the thumb buttons back about an inch, and add 1 or 2 more thumb buttons either in a plus formation, or two over two. I'd also push the mouse theory by adding another button either on the LeftClick, or RightClick part of the mouse that was higher up (about where your second knuckle is) so you could do two different clicks with one finger.
It's not a bad mouse, but could use some reworking.