Worthless to a non-gamer. One extra star for the warranty.
William Krause, Amazon
24 June 2014
Summary: Yes, I KNOW that it's designed for gamers. I thought I was being smart-- get a gaming mouse, it should last longer than a standard mouse. This one lasted 14 months of web surfing and word processing. Not good at all. And the input seemed less consistent than my old $10 Kensington mouse. At least Logitech is good about replacing it under warranty. I paid $22 for this, and it was overpriced AFAIC.
Summary: People having same issue with this particular mouse and its cable. Do not buy it. In my particular case, after 3-4 months it died. Where the cable meets the mouse its a very weak spot that with a little tug and eventual bending happening in normal usage can turn your expensive mouse to nothing. I mean, this spot its not even broken or badly beny. Its a weak piece and terrible design. Look for other reviews and you'll see its a common problem. Avoid this product.
Summary: I put a lot of faith into Logitech because of their durable $20 mice that I have gotten so much good use out of. I decided to spring for this gaming mouse and regret it. First, my mouse sensitivity kept changing and I would have to go into the software to readjust it. Then, after a year of use it started doing this thing where it would stop working, I would hear the disconnect sound from Windows, followed by it working again.
Summary: Despite having to install special drivers, this mouse was decent for about a year. Then it began cutting in and out intermittently. I thought I had a lemon, so I contacted Logitech support. They weren't interested in fixing it, despite going back and forth with me with silly 'reinstall driver' fixes. Oh well. Then I Googled the issue. Turns out TONS of folks with G400s get the same intermittent cut out issues after a year.
Summary: This was not an inexpensive Mouse.. We were shocked that the USB wires where they enter the mouse had broken in about 2 weeks. The mouse was intermittent in use. If you wiggled the USB cable near the mouse you could see the mouse work and stop. I think Logitech used too thin a cable .
Summary: This model and probably other models of Logitech mice have this major issue with its wheel. Eventually it will stop working and even worse malfunction and seems like Logitech offers no solution to this matter. I should've googled about this mouse before I purchase. Now that I google "G400 wheel problem" I see tons of other people having same issue as me.
Summary: This mouse is perfect for someone who doesn't need an excessive amount of features or buttons. It is comfortable with its superb ergonomics. It has a sleek and minimalist design which should appeal to many. However, it's extremely hard to justify giving it any higher than 3 stars when it has a major design flaw - its chord. The chord is very fragile and will typically break within a year. Your mouse will then frequently disconnect.
Summary: I've tried a different mouse and computer just to confirm the mouse was the problem. It disconnects every one or two min for a few seconds. It's pretty annoying, and I can't fix it because based on reviews here it's a problem with the wire being too thin and shorting out spontaneously. I wish I could continue using it because it's a great mouse otherwise. Though its two year (other people have had a few months) lifespan for it's price is bad.