I’ve had a G903 for about 3 years…
CON: When it’s first powered on the massive G symbol on it cycles through a childish rainbow of colours at obscene brightness.
PRO: You can change the default profile to be a steady, muted colour of your own choice.
CON: The software to configure the mouse isn’t available for Linux.
PRO: Once you configure it once via Windows in a VM, the settings stick, stay with the mouse, work on everything you plug it into — including Linux — and you never need to let that garbage software near your system ever again.
CON: If you drop the mouse onto a polished concrete floor the buttons break off and fly in all directions.
PRO: The buttons are held on by magnets, so once you find the damned things you can just push them back on.
PRO: I’ve dropped the mouse ~90cm onto polished concrete floors at least 40 times, and it still works.
PRO: The DPI switch on the top is excellent for changing sensitivity whilst sniping.
PRO: The button that toggles the ratcheting mechanism on the scroll wheel is amazing. When you’re playing games that require you to cycle through equipped items you press it and go into clicky mode. When you’re scrolling through web pages and long documents you press it and go into silent, almost friction-free, spin to infinity and beyond mode. Brilliant. I even play games at the end of long (e.g. 100+page) documents, to see if I can — with a single flick — set the scroll wheel spinning so fast I make it back to the top of the doc in one shot. Hours of fun for all the family. Highly recommended. This one feature alone almost justifies the purchase price.
CON: Ambidextrous. Just doesn’t feel quite right in my hand. Not even now.
CON: With a claw grip, I keep accidentally pressing the two buttons on the pinky side of the mouse and doing random/unexpected things at inopportune times.
PRO: You get a blanking plate that you can swap in so that those two buttons no longer exist.
PRO: All the Teflon pads on the bottom are still in perfect condition, even after years of (ab)use. Impressive. I think there are spares still in the box as well.
PRO: The cord doesn’t accidentally slip or come loose — ever.
PRO: The cord always has been, and remains, quite flexible. Doesn’t catch on things. You barely even notice it.
PRO: Surface tracking is excellent on a wide variety of materials, be it the Powerplay mouse pad, leather, denim or a laminate counter-top.
PRO: Input latency (when wired) is faultless. Well beyond my ability to even assess/detect.
CON: Price. Has to be said. This is one hell of an expensive rodent.
Perfect? No, the G903 is not perfect. It is, however, the best all-round mouse I have ever owned. If they ever release a right-hander version, I’d buy it in a heartbeat.