The software not only affects how the G502's buttons and controls work but also which profile you're using.

The 'Logitech Gaming Software' installs as a menu item accessible from your Mac's menu bar. Maybe it was an oversight, or maybe support for the G502 was only offered after the product was already released. Any USB mouse is Mac-compatible, but Logitech makes Mac driver software too - excellent driver software. I have to say that to look at the mouse in its packaging or in its web site, you'd have no idea that it's Mac-compatible. A dedicated button below the solid metal scroll wheel either locks the wheel so it ratchets audibly as you turn it, or freewheels. The G502 sports no shortage of programmable buttons and controls: 11, all told. The primary and secondary mouse buttons are quite long, about half the length of the mouse overall, and are quite responsive all the way down to their base, so the mouse should be able to work well for different kinds of grips and different kinds of games. When gaming with it, I'm moderately more comfortable using a palm grip with the G502 than I am using a claw grip, though that may be because I tend to grab the mouse further back. The G502 measures 5.2 x 2.95 x 1.57 inches (132 x 75 x 40 mm), making it comfortable for my hand - I wear a medium-sized glove.

Logitech g502 core