Scroll Wheel busted in less than 3 months
345079
Bought July 14
Wheel broke on me October 5
Get what you pay for?
2007603
This mouse is wonderful as outlined in many other reviews. Mine, however has a faulty scroll wheel which will not accept inputs unless I spin the wheel faster and further than desired for normal page scrolling.  This happens whether the wheel is locked or free-spinning.  I've installed the Logitech Gaming Software, updated the mouse firmware, and reproduced the issue on another PC.

Having used Logitech support many times in the past for other Logitech products with consistently satisfying results, I attempted to submit a warranty request on Logitech's website.  The familiar support site is gone, replaced by a new, less functional site which, in addition to this current issue, recalled none of my previously registered Logitech products.  Unfortunately, every attempt to finalize the warranty request is met with a 3rd party error page stating that there was a problem with loading a Visualforce page. Even attempts submit a question into the normally-helpful Logitech community forum have been met with interface issues disallowing me from creating a new post.

My only next step is a phone call to Logitech during business hours. Hopefully I can get this resolved, and will update this review when possible.

*********EDITED 01/04/17*********
Somehow the scroll wheel issue seems to have resolved itself, so I am cautiously optimistic that I will have no further issues.  The problems with Logitech's support system still exist, however, so be warned: If you purchase a Logitech product and have problems, you may receive little to no support until they get their act together.
365367
The mouse is not working well after a few months. The page scroll wheel is loose and automatically scrolls up & down unwantedly! Also, the left click button doesn't work every time.
2990128
Scroll wheel broke in under 6 months.  Not even everyday use.  I've owned several vertical mice and they often have issues with scroll wheels first, but never have I had one die so fast.
Do yourself a favor and get a different brand.
J-tech scroll wheels tend to be the one I've noticed last longer than the others, but somebody really needs to get on this and find a way to make them without them breaking so fast.
4459573
I have had this mouse for 2 months now. The mouse over all has done everything I was hoping for. However, after just 2 months of use the scroll wheel has begun to be buggy. The scroll wheel will just stop working while scrolling up or down a page and this happens quite often. I have to click the scroll wheel button to get it to work again. I do not like having to do that every five minutes or so when it stops scrolling. The other issue I have been having, which started around the same time as the first, is that when I am scrolling it will scroll the opposite direction a little bit. So if I am scrolling down it will scroll down then scroll a little bit up instead and then continue scrolling down and vise versa. I have tried cleaning out the mouse in case there was hair or something in there but that did not fix the issues.
3494451
I've had a total of five of these jewels (can't say that I didn't give it a chance). At best, to took three weeks before the scroll wheel became so erratic that it was useless. The average seemed to be two weeks. Additionally, the mouse pointer movement became erratic unless fresh batteries had been install within the last week or so.

At $5.00, I did not expect the mouse to be the best of quality; but I did expect it to last longer than two weeks. I honestly think that the manufacturer should be fined for wasting the materials to produce a product that will end up in the trash in a month, or less.
1982758
For the money, the mouse is a good value. Fits large hands well, responsive, has a nice cable, although a little light. However, the scroll wheel became stuck after less than a month of use. I see one or two other reviews with similar experiences except my scroll wheel only goes one direction now, rendering the mouse useless. Wish it is more reliable.
4336181
I bought this mouse for work. Really great mouse when it did perform correctly. The scroll wheel became loose, and now I need to apply unnaturally more pressure to the wheel for it to register and scroll down a page on my screeb. I'm disappointed it only lasted 3 months.
2343698
I have large hands and this mouse is the perfect size, ergonomically.

However, all 3 Kensington mice (2 wired, 1 wireless) gave away in 3 to 6 months! The mouse works fine, but the scroll wheel either starts spinning freely or is jerky; it's plain unusable.

I purchased it from outside the US so I'll be trying their warranty when I visit next month.. Fingers crossed.
2620653
Ordered and it received it directly from Amazon in July. Barely three months old and the middle click-wheel button is failing intermittently. Not as good as the original G500 (I had two and both lasted me for nearly five years before they stopped working, and not a single issue during that time), which I loved. This "reboot" of the G500 is somewhat smaller, doesn't feel as solid (even with the weights maxed out) and was a bit uncomfortable until I finally adjusted to it. Then the click-wheel craps out.

I guess Logitech doesn't make them like they used to...

Update 11/10/2014:

Been going back and forth via E-Mail for weeks now with Logitech, trying to get an RMA replacement with no success. I keep getting new case numbers and new "Customer Care" asking for the same information and presenting the same useless trouble-shooting "tips" that not only do NOT apply to the G500s, but have nothing to do with the click wheel prematurely failing.

Logitech's support isn't what it used to be either...
1176497
I loved this mouse at first but within a couple months it started glitching out & not functioning properly.  This is corrected for a short time if I turn the mouse off & back on.  Then after about 4 months the center scroll wheel started malfunctioning.  So I am back on Amazon to buy another new mouse after having just bought this one 6 months ago.
1769738
it feels nice and looks rad, but kinda faulty for example my scroll wheel doesnt work at all after about a month, upsetting, wouldn't recomend. The single click double clicks more than half the time too now.
2994895
I've had this mouse for 3 years now, and the honeymoon period is certainly over. The rubber grip texture on the sides erodes fairly quickly and is not very durable. While scraping off dirt from the side, I unknowingly started scraping off the grip texture. The only section of the mouse that retains the original texture is the upper portion of the left side where my hand never goes. But that is a minor complaint. What has spurred me to write this review is what happens next. The mouse wheel has become completely borked. A light tap (not even a scroll, a tap) up on the scroll wheel and pages scroll down. A downward tap or scroll on the wheel and pages scroll ALL the way down, and when I instinctively scroll up to correct this, it scrolls down some more! It's a nightmare.  I've never had any generic mouse with such a dysfunctional wheel, let alone a proper gaming one, and this is only after 3 years of use.
976340
Lasted 1 year until the scroll wheel made a tiny snap sound (I was not pushing it hard, just clicking it normally) and middle mouse button was only working half the time since then. I ignored it for a year until I decided to take up 3D modeling as a hobby and it can not hold middle click for more than 3-6 seconds. Purchased Nov 2015 and being replaced Aug 2017. Another thing I ignored for a very long time was the software not being able to detect it, but I never needed to configure it anyways.
2507848
This thing broke 2 weeks after I purchased it. The scroll wheel dislodged and now it won't work at all. What a shame, since the last one I bought just like it worked fine for over a year.
3350444
The mouse has worked incredibly well in the eight months I have owned it but the scroll wheel is breaking down. I didn't expect that to happen so soon and to have to replace this product in less than a year. I suppose it's not a rip-off at only $10.00, but I can't give it more than three stars.

EDIT: TeckNet provided the best customer service I have ever seen. They promptly offered me a complete refund, but I opted for a replacement mouse because I do like this product. My fiance is able to use the mouse that is a little bit buggy. I am completely satisfied.

Additional edit: The replacement mouse broke when it fell from a distance of about 2.5 feet. That doesn't take away from it's rediculously long battery life or wonderful performance, but it is something you should be away of.
2724749
Great design but poor durability. The scroll wheel broke after pressing without excessive pressure or dropping the mouse or other abuse and despite very infrequent (~ 2x/wk for 4mo.) use.