Pros: Good design good feeling accurate to locate my action

Cons: Only thing I think not good is the wire. it is not a normal wire, I mean the exterior is made of cloth or sth. like that. So when it is curved and if you want to make it straight, the interior part would come out. It is hard to express what happened but Logitech replaced one for me.

Other Thoughts: I have owned more than 10 logitech devices. Most of them are mice and I am really a Logi Fan. Sorry microsoft. I had Mx300, G1, two G3, two G9X, K320, K800 and tens of wired normal keyboards. However, I found the quality of some of them are going down. Recently, I bought the highest line: G9x+K800, and I had to replace them once. The indicator light of Caps Lock on my K800 was not working just after 3 months using. Notice that this is the highest model and I do not really understand how it happened.

Pros: Comfort, feel, durability, customization, price. I've bought many mice in the past year (around a dozen) all with different flaws, but i have finally found the perfect mouse for my medium/large hands. For hands that size it is hard to find a good mouse for claw grip, yet logitech did an amazing job with this one.

Cons: A lot of people mention something in the sort of it making their palm sweat, i too have this as well. It is not as terrible as it sounds though, at most it is a dampness and to get to this point it takes a good hour at least for you to even start to notice it.

Other Thoughts: Overall the high temperature of this mouse is worth dealing with considering it is flawless other than that.

Pros: Very nice feeling mouse, the extra grips add a little variety to it whenever you get tired of one. Logitech Setpoint has tons of features you can assign the buttons to, which is very convenient to have. The ability to set the color of the LED is cool, loads of colors to choose from.

Cons: The button to disengage the mouse wheel click is under the mouse. Would be MUCH more convenient to have it easy accessible.

Other Thoughts: Wish there were more LED on this mouse, as they one for the sensitivity is really cool. The weights only really make a difference if you put the max amount in, or none at all. The texture of the slim gaming grip is different that the wide one, its a rough and grainy feel rather than the smooth rubber-like feel of the wide one. I dont like it, but its just personal preference, really.

Pros: Bought this to replace a Razor Death Adder that my 14 year old wore out in a years time. (okay so I'm a bad parent that allows my kid to play 14 hours a day, 7 days a week) Anyway I liked the changeable grips and the weights that can be added, but the kicker is the software it come with. Its so customizable in many areas, like having a custom recliner made just for your bod.

Cons: None that I can think of.

Pros: This thing is sweet

Cons: For me , you can forget about buying for the free game

Other Thoughts: Works really well, I did buy a new mouse pad but feel a thinner pad would have been better with this mouse. I really like the smooth scroll wheel, It helps make it feel like a quality product

Pros: It fits nicely in the hand and comes with a textured bezel for a non-slip grip. Has customize-able LED colors via the software and high DPI settings. The weights make a difference in how the mouse feels when moving it around on the pad.

Cons: It wasn't free. If you're left handed, you're out of luck on this mouse. It is definitely designed for right-handed people.

Other Thoughts: It was well worth the money spent. I tend to make my mice last a while. Logitech products hardly ever die. This mouse makes my 5th Logitech product. The other 4 are upwards of 3 years old and still work perfectly.

Pros: Very fast and accurate. Adjustable weights, on the fly sensitivity changes at the touch of a "+" or "-" button. Braided mouse cord looks good and does not snag.

Cons: Not so much of a con but a preference. There are 2 mouse covers for use with different hand sizes. The smaller hand size has a gritty feel while the larger one has a smooth I want to touch you rubber feel. I wish I could buy a smaller cover with thw feel good touch of the larger on

Other Thoughts: This is replacing my G5 laser mouse which is also excellent. But the G9x is even better. As the weights don;t fall out if you drop it and my dad drops my mouse often. I like my mice heavy and I love how I can change the sensitivity ont eh fly with 5 pre configured settings or I can use the software to customize.

Pros: I have never had a better mouse. I love how I can adjust the cursor speed on the fly. I adjusted the weight and it makes a huge difference. I have had this for 6 months now and I am very pleased.

Cons: The only thing I do not like is the scroll wheel. It is very sensitive and sometimes during web browsing it will fling my page all the way up or down and keep moving the page if I accidently bump it. That is with the vertical scrolling speed set to 1 using the setpoint software. Also it is very hard to individualy cycle through weapons using the scroll wheel on BF3.

Other Thoughts: I do not plan on finding a new mouse. I can live with the cons and would recommend this to anyone. Also the cable is very strong. The cable gets caught between my chair and the metal bracket where my keyboard use to be on the lower part of my desk. It has been mashed in there several times until I moved the cable to the back of the desk. It survived me swiveling my chair into that spot several times with the cord caught in between. When would you use horizontal scrolling...

Pros: Sexy, great tracking, tremendously useful. Has a grip for palm grip and claw grip.

Cons: Had an issue with the right click being a little "squishy" removed the Teflon feet, and put some tape under the button to make it easier to click. messed up the teflon feet, they work fine now after re-gluing and re-attaching the feet.

Other Thoughts: Well worth the price. Went from a RAT 7 to this beauty and it's a SIGNIFICANT upgrade.

Pros: Solid mouse, feels great, works so far

Cons: Assigning a grenade to the front most side mouse button is dangerous. If you squeeze the side of the mouse at all it will press on the button (#5 i think?). While playing a FPS this is very annoying. If my g5 still worked I would use that instead.