Setup, Design & Observations
In the hand, the G900 feels fantastic for claw and palm grip and being on the smaller end of mid-sized mice combined with its 107g body, finger tippers will be pleased too. The mouse is well balanced with the sensor placed at its centre of mass. The mouse works directly as plug and play once you have put the USB receiver in a free USB port and switched the mouse on. For more advanced features and customisations you can download the Logitech software.
The mouse clicks feel fantastic and can easily be rapidly pressed, each click being crisp and satisfying. The mouse wheel too feels awesome and can be pressed, tilted and rotated. If you want speedy scrolling, Logitech have added a button to enable a free spin mode. The side buttons can be removed and replaced with a blank, and if you are left handed you can install the extra included buttons. Pressing the side buttons felt a little less crisp and responsive, leaning more towards slow and squishy and I found that being so long, that it made pressing the back button (or G4) a little more inconvenient than is necessary, either the side buttons could have been a little more compact, or could have been moved forwards 5mm or so.
The included braided cable is good quality and can be used to charge the G900, or you can attach the included USB dongle and nano receiver for more flexibility and coverage for the wireless function. Though this can cause an inconvenience in regards to recharging your mouse as there is no charging dock included. This may not be an essential addition, but considering the price and competition, many may prefer the convenience of having a charging dock. This could be an oversight consider microUSB cables are pretty widespread, but this could also be a deal breaker for some as this ensures that there will definitely be plug in time. In regards to the lifespan of the battery, it would be difficult to guage without spending a considerable amount of time in use, though after an entire 12 hours of use with LEDs on, the LGS (Logitech Gaming Software) still reports 60% battery life, if accurate the 24-32 hour lifespan is wholly believable.
There is on board memory to store up to 5 profiles, so you can cater for various play styles you may have.
Performance
Testing the 3366 sensor at its max DPI of 12,000, black fabric cloth mouse mat, coloured glossy card, glossy wood veneer desk, plastic mouse mat, white paper, cardboard even black glass, tracked amazingly well with no noticeable jitter, and was highly responsive. It was so responsive it even made the wired Mamba TE feel very laggy in comparison. In game, I felt the difference this well designed mouse made, I felt comfortable, in control, and amazing. Several click spam matches on DOTA2 later, and I was loving every second with the G900.
