Exactly the same as me.
The G502 is a very good improvement over the G500. They're also durable mouses and the software is astonishing, and it's by far the best productivity improvement I've had in ages! Just having the multiple configurable buttons, it's brilliant!
:EDIT:
I currently have the G502, I should clarify.
Not sure how durable I'd call them. Mine took a tumble of 2-3 feet pretty early in its life, and it screwed up the wheel. Little hard to describe, but it's almost stuck in an eternal state of being half-pressed. So, pressing down doesn't click, it's a very slight, soft depression, and it's easily activated while scrolling.
Of course, I'm not saying the 502's a bad mouse because I'm a clumsy idiot, just saying I've had other mice on this same table fall multiple times without being damaged, and this one's first fall has made it an annoyance.