I have the G500 mouse. After some substantial fiddling with the included software I was able to get it to the point that it feels absolutely perfect.
For me there is a gigantic difference in how well the G500 feels and works compared to a cheap mouse. I had a G5 before, and I broke the cord on it and while I waited for this G500 to come in the mail I used a cheap $20 logitech optical mouse and the difference was maddening. It was slow, it was unresponsive, it was inaccurate.
The feel of the G500, or G5 I had before it, going across the desk is substantially better. The weight of it is fined tuned to your liking, so you can move it fast but be controlled. Then you can set the dpi using the included software to match how fast it moves on screen to how fast you move the mouse making it feel very natural. Which gives me a much easier time being able to twitch snipe in TF2 or swap targets in WoW or to be able to rapidly adjust a model I am working on in Maya.
As for the extra buttons, there really is only 1. The 2 buttons on the top left mouse button are there to control the dpi while playing allowing you to increase it or decrease it, I dont use them and actually disabled them in the software since I like just finding the perfect dpi for all around use. The button below the scroll wheel is not really a button, its for changing the scroll wheel from normal to infinity scroll, which lets it spin on and on and on, which I guess you might use for large documents. Then on the left side you have 3 buttons, the front and back I use all the time, as its forward and back in any web browser, and I can bind them in any game. The middle button I set up as being the ALT key using the logitech software and its really the only button thats extra since the other 2 side buttons are pretty standard now since they used in web browsing.
The problems I have with it is that the software screws it up a bit when its installed on the computer, I have no idea why but the feel of it gets messed up if the software is installed. But the mouse has onboard memory, so I installed the software set the DPI and button config to my liking, then uninstalled the software, and it works great.
The other issue I initially had with it is that it has a gritty texture on the sides of the mouse which was really unnerving for the first couple months. Now I dont even notice it, and I assume it helps a bit with grip, but it still felt weird for awhile.
As for the keyboard I used to have a logitech g15, I broke the stands and the palm rest and a couple keys after 3 years of use, but it was a solid keyboard. After that I tried a Razer keyboard since it uses mechanical switches instead of membranes, which are supposedly more responsive and they do have a great feel to them, but that thing was a piece of **** that literally had pieces breaking off of it in a couple weeks. I now use a $40 Microsoft Sidewinder X4 keyboard and Im quite happy with it.
The reason I did not go back to logitech was because I didnt see the point in spending more for it. My g15 has those G keys on the left like the keyboard you are looking at, but in 3 years I never ever used any of them since I could not comfortably hit those keys while keeping my left hand on top of WASD; and no matter what game I am playing I am constantly using WASD to keep moving and to stop moving, even for a fraction of a second, seems terrible. The Sidewinder I have now has the back lighting, it's heavy duty, it does have a few extra keys on the left, but I cant really hit those either, and it does macro function, but really at the time it cost half as much as a logitech keyboard and after wasting $130 on a Razer keyboard I couldnt reason it.
Core i7 2600k/ ASUS P8Z68-V Z68/ 8gb Corsair Vengeance 1600 Blue/ EVGA Geforce GTX 560ti Maximum Graphics Edition/Windows 7/Antec 300/Antec 650w/LG Blu Combo/Hp 27inch 2710M/Samsung P2770HD
"I think sharing is overrated...and helping others. And what's all this crap I've been hearing about tolerance?"