Being a long-time Logitech fan, I wanted to try one of their competitors (just to see what I was missing). I also didn't feel that Logitech had a good-enough selection of cordless gaming mice. Thus, I found this little gem offered from Razer.
The Razer Mamba feels great in the hand and has the best tracking you will find on a cordless mouse. After a few hours of use, I had quickly concluded that this mouse was superior to any of Logitech's comparable offerings.
However, after using it for a few days, many issues began to emerge. In short, Razer has serious quality control issues with this particular gaming mouse. I received three of these mice from Amazon, and each had a unique problem:
Mouse 1 - the battery would constantly drain, even when the mouse was not being used. This resulted in about 8-10 hours of uptime before the mouse would require a recharge. I called Razer and they diagnosed this as a hardware problem and suggested that I do an exchange. The mouse is actually supposed to go into standby, thus preserving the battery for days (if the user limits actual usage).
Mouse 2 - the left click was "squishy," meaning you didn't get that nice, tactile effect when clicking. The mouse still worked, but I didn't like how the left and right click felt differently. The scroll wheel also felt loose and made this squeaky noise whenever scrolling. (call me picky, but this is a $130 mouse)
Mouse 3 - the right click button did not actually "click." This was similar to the problem with mouse #2. The right click did, in fact, work; however, at many times, I didn't even know I had the button down. These types of issues really make you realize how the "small" things matter with these types of products.
So, in conclusion: if I actually got a working mouse from Razer, I would be loving it. I would probably give it five stars. However, after observing three separate issues, I quickly came to the conclusion that Razer has terrible quality control. The thing that bothers me most is that Razer clearly invests an insane amount of money into package design. The box for this mouse is like a trophy case. When you open the case, you get three "drawers" that hold the different components for the mouse (e.g. battery, charge cable, etc.). I'm baffled by the fact that Razer invests in these types of things when they clearly have serious issues with actual functionality.
For those brave enough to still purchase, here are a few other CONS to note:
* When charging the mouse, you have to physically switch off the mouse. The "off" switch is located underneath the mouse and isn't the easiest to access. Also, if you forget to flick the switch to off and leave your mouse charging over night, you'll only get 1-2 hours before the residual charge wears off. Note that Logitech products don't require the user to switch on/off when recharging. I have no clue why Razer made this a requirement for normal use.
* The designers provided a USB cable which allows the user to charge and use the mouse at the same time. This is actually an awesome feature since you will be needing constant recharges for this mouse. Unfortunately, the designers also put a physical "locking" mechanism on the mouse to ensure the cable doesn't get pulled during use (sounds reasonable, right?). Well, the lock eject button is on the bottom of the mouse, is incredibly small and difficult to switch. Further, you can't hit that switch without actually clicking the top of the mouse. Why, Razer, why?
* While Razer is quite proud of their battery life, this mouse does not compare to most cordless Logitech mice. In comparison, the Logitech Performance MX mouse can last me an entire week with 8+ hours of daily usage. The Razer would last 1 to 1.5 days with 4 hours of use each day. I would expect a gaming mouse to have less battery life than a non-gaming mouse, but we're talking about 10% of the battery life of a non-gaming mouse.
TL;DR - Received three Mambas, each with unique and separate issues. When it works, this is an awesome mouse (minus a few design flaws).