It is a g502 that is wireless. If you like the g502, you will like this mouse. Battery life is amazing. Infinite scroll wheel is nice. All the buttons are accessible, even with my small hands. It is even slightly lighter than the wired variant, which I did not think would be the case.
It is still a "brick" compared to lighter mice, but has more buttons/ QoL features than the lighter mice. As long as you aren't a "l33t pr0 gam3r dude(tte)" it is totally fine in fps games. Scroll wheel does rattle a bit when lifting and flicking with the mouse, not a huge issue imo.
I love the g502, and think it is the perfect mouse for all around productivity/gaming use (as long as you are right handed). My only complaint was the lack of a wireless version, but that is now solved. I feel the premium over the wired version is totally justified. Highly recommended.