Ever since my G700 died last year I've been struggling to find a good replacement. I wanted 4+ thumb buttons, a good scroll wheel and something that would last. The last non Logitech mouse I had used was the old Microsoft intellimouse, which I would put right below the original MX518, which was the best mouse I ever owned.
Nothing from Logitech really interested me so I started looking at other brands. I ended up settling on a Corsair Dark Core RGB, as I found it on sale pretty cheap as a combo with the wireless charging pad. I figured I could live with only having 3 thumb buttons. Big mistake. If I actually used it wirelessly and had to charge it (wired), it would eventually heat up and stop working. If I left it on the wireless charging pad, I would have to wait a good 5 minutes and turn it off and on repeatedly to get it to start working.
Tried a Razer Naga Trinity next, which is my current mouse. Not bad, feels a bit cheap but it is light, and the ability to change out thumb button panels depending on what I'm doing is nice. I had heard nothing good about the software, but I haven't had any issues with it. I didn't even have to log in with a Razer account in order to use it.
Unfortunately it has now developed double click disease in the left mouse button after about 8 months of use. Combine that with it's garbage scroll wheel and I'm not going to bother trying to fix it, so I took a look at what Logitech has to offer now.
I think I've found what might be perfect for me, the G604. 6 thumb buttons and a scroll wheel that will switch between ratcheting and free spinning. The only downside I see is that it only works wirelessly and it uses a singe AA battery, which has its pros and cons.
Amazon product ASIN B07QN369XX