I liked my Logitech Performance Mouse MX a lot and the original Logitech MX Revolution was perfect. Before those I swore by the Wireless Wheelman series that is more or less their spiritual progenitor.
The problem? The first mouse lasted 5 years, the next 3 years, the next 18 months, the next 1 year, the next couple six months. The failure point of all of those were the switches (and the charging in one case). I wrote a utility to track click errors and calculated that they wasted about 8 hours of my time a week.
The quality and design of Logitech's mice really took a nose dive after the MX Revolution. If I'm going to have to replace a mouse every six months, I'm not going to continue dropping that kind of bread on them.
I've switched to a cheap Logitech M100 wired mouse. This mouse has served me well for almost two years, so maybe the quality control has improved. Wireless was nice but charging generally sucked and became worse with each new model. And going back to a wired mouse after 10 years wasn't annoying like I expected. The free-spinning wheel of the MX series was fun, especially on the original MX Revolution, but it's a feature I can live without. The tilt-wheel was cool but I don't really miss it.