well, if you prefer to palm your mice and/or prefer large sized mice then perhaps you will find the deathadder an upgrade. the buttons on the side are also very easy to activate due to their size but not prone to accidental clicking.
you should be able to find the mouse in local stores to test it out for yourself before you buy if you were interested and think it might work for you.
however, if you liked claw grip or smaller mice it may not be right for you.