Summary: It high dpi, comfy and the extra buttons are well placed. The finish and feel of the plastic is very good, smooth but still has a little rubbery grip feel to it. i have the older grey model at work, had it for the last 4 years. still works great. When my razer mouse started making double instead of single clicks decided to change. Decided to go for this less fancy mouse but still highly reliable mouse and save some money.
Summary: I initially chose this mouse because the Logitech website said that it would be compatible with my Mac (unlike the Amazon specifications, which say something completely different). I also wanted a mouse with lots of programmable buttons and the ability to assign unusual functions to buttons, such as double clicking and opening Spotlight. Unfortunately, the software is a bit buggy.
Summary: In the new model you are getting the same beloved shape of the mx518 and a sensor which so far hasn't shown any problems, so this is great if that's what you are looking for. But if you want something more, look elsewhere there are lots of better mouse around. The g400s is not a quality mouse. The cable is super thin, not braided and the connection to the mouse has almost no reinforcement to prevent the cable breaking off.
Summary: This is an optical mouse with multiple configurable buttons intended for gamin use. The shape is ergonomically designed to fit into the palm of your hand (like any mouse) but it is specifically contoured so that none of the additional gaming buttons are ever far from your fingertips. The unit is lightweight and responsive, though the buttons themselves feel a little too light to the touch. They're responsive, but I wonder how long they will endure under rigorous gaming.
Summary: Vuosia MX518 käyttäneenä petyin uudempaan G400s hiireen. Ensivaikutelmalta johto näytti hauraalta, mutta kesti hyvin. Plussaa tassuista jotka eivät irtoa. Kehuja myös hylkivälle pinnoitteelle. Mutta 7 kuukauden jälkeen heikko valmistuslaatu näytti kyntensä. Hiiren sisällä olevat kytkimet aiheuttavat että yhteen vasemman napin painallukseen voi tulla muutama lisä painallus. Sitä ei tunne mutta näkee kun ohjelmat tunnistavat tupla-klikkauksen.