I think I would really give it a try if it wasn't that I'm using the CapsLock as LWin on my Model M. Funny thing is I actually used CapsLock before remapping it, I had trained myself to avoid holding shift down when I was to write anything on caps longer than 3 characters and just switch CapsLock on.
I'm not really missing it, so I guess it isn't that much of must even when you are used to it.