I love the feel, size and workings of logitechs high end offerings, but the damn cords keep going for me. I had 3 logi G products that had the cord fray right where it comes out of the mouse. They don't have those little rubber bendy things on the end, combine that with the nylon braid that catches on everything and I had issues.
Too bad, I loved those mice.
EDIT: IIRC the G500 had a *****in free scroll wheel. hit the free spinning release. Click, spin, click and you're where you need to be on any document/webpage.