i think the most underrated part of logitech mice is the force needed to actuate the mouse buttons.
for context, i upgraded to the g303 from the zowie fk1 after learning about the fk1's click latency.
not only does the g303 have instantaneous actuation, the force needed to actuate the buttons is extremely minimal.
with the zowie fk1, i average 210 to 230 ms on humanbenchmark.com's reaction time test.
with the logitech g303, i average 170 to 180 ms (and this is with lightboost on my vg248qe enabled).
the difference is shocking.
the tracking is just as accurate as the zowie fk1 while also having a higher maximum tracking speed, so it is easily a direct upgrade (and i haven't had a single issue with the logitech gaming software; it seems to run a lot better than the g9x days).
and if you're comparing logitech mice, the g303 is free of the various issues that the g502 (not only is it logitech's heaviest mouse, you may get one with this issue), g402 (also buggy tracking), and g400s (smoothing) have.
more subjectively, my grip varies a lot depending on what i need to perform, and it's much easier to switch between palm, fingertip & claw grips with small mice than with large mice.
also, you can TBF and block rush really easily with logitech mice if you play gunz the duel (not like any1 here besides kev and me have, but it's pretty much impossible without an extremely lightweight chassis & sensitive buttons)!!!
i could sing praise for days!!!
p.s. it tracks just fine on the puretrak talent, the artisan hayate, & the qck heavy