Got one! Feels pretty much the same in my hand, the higher dpi is nice for my 4k monitor but also it will make me less accurate in shooters so i'll need to remember to put sensitivity at lowest. The side buttons on this are better than any of the intelimouse 1.1 or 3.0 I've tried before, instead of feeling like flimsy plastic hanging off that can be clicked they feel like actual buttons. Overall I like it, I wish I could lower toe dp to at least 800 or better yet 400 the intelimouse 1.1 and my current 3.0 sitting off to the side do but eh I'll find a way to make due. Dunno what the big fuss about the blue led is, it works just fine for me on my huge ass mouse pad and its not a laser like my g600 has so its not gonna be amazing at that anyway.
Over all I like it so far, I'll use it more and post pics some time.