The Golden Classic controller is not likely to be anywhere near as big as the original Xbox controller, which was overly huge, considering the current Classic controller for the Wii is rather small in comparison to past controllers for all consoles (with the exception of the Playstations controllers, which are probably of similar size).
The only reason I would ever buy this controller if due to the fact that it is the closet Nintendo are ever going to get to releasing a Nintendo 64 controller (which is my favourite controller overall) for the Wii, as they opted to remake the Classic controller and the Gamecube instead, and probably don't see the need to remake the Nintendo 64 controller. I've also become accustomed to the Nintendo 64 controller while playing Goldeneye to, so I don't think that any other controller would suffice for playing the game as well.
I think that they should have went with releasing it in Black and White to, not that tacky golden colour which just looks horrible. I hate it when things are coloured gold in an attempt to make it look cool.
I am rather disappointed by the fact that Nintendo didn't release a Nintendo 64 controller to go along with this game; although it would need a better analog stick as the original controllers (I haven't experienced this problem in the 13 or so years I have this console) were said to have some bad faults.