I used MX518 for about 3 years, G5 for about 3 years, G500 for about two years and having been using the G400 for about a week now.
G400 is definitely the best mouse I've ever tried. You cannot go wrong with it, especially if you liked the MX518 (which it is a remake of). I'm only slightly lukewarm towards the software. I'm quite used to Logitech Setpoint but the G400 uses some new Logitech Gaming Software. Not sure what I think of it yet, or as to why the change was necessary.
2012-03-18 21:48:24