I will only write down my experience with the G700 here, I use it for 3-4 years now.
It's the first mouse I got with perfect wireless performance (I had a MX700 before and a Microsoft Wireless Intellimouse Explorer, both performed relatively bad compared to this), that has no handycaps compared to wired. I tested it with comparing to the wired mode of the same mouse, no difference at all - and I tested it in FPS + RTS games and all other types of games. The mouse is perfectly formed for a right hand user, even better than the legendary MX500 form. It has a lot of buttons, all buttons are perfectly built, not like someone said here. Also the buttons have a low click distance which is good for a RTS gamer, or FPS gamer. Battery endurance is maybe the only problem you'll have with that mouse, because it has only 1 battery and is a gaming mouse (using somewhat high energy), it needs charge every 2nd day at least with continious usage. The laser is very good, 5700 DPI is more than enough for anything, software is very good too it lets you customize every button and DPI setups (up to 3 different DPI setups with 5 profiles each) - the changes can be saved in the mouse, so you don't need the software if using it with another computer. The charging cable is good enough too, it's not as good as the cables a wired mouse has but it's thick and solid. Charging the mouse with it is very quick (about 2-3 hours from low or empty to full), but you can only use batteries with ~2000MAh with it because it isn't suited for charging higher capacity. That's why I used a 2800 MAh battery and a discrete charger with it for years to have a spare stronger battery and no need of the charging + cable at all. The receiver works over long distances, I was able to use the mouse in over 10 meter distance, that's more than enough for almost anything. Also the mouse has a nice simple black style without fancy LEDs and such things.
For me it's simply the perfect mouse and best I ever had, I couldn't wish for anything better, just a better battery perhaps, that's it. Get it and be happy with it.