Model M keyboards are the best keyboards ever designed; they can ergonomicize the shit out of keyboard designs and stick all kinds of shortcut buttons on them, but unless they bring back the positive clicking of the keys and the overengineered-to-withstand-a-nuclear-blast durability, they ain't shit.
However, cleaning them is another story. There's a very good reason why Model M users are also characterized as having fucking disgusting keyboards.
EDIT: Looks like I don't have a Model M anymore >:(