Ha, I am also doing my first CW trip tomorrow thanks to a nice upgrade offer to get me home from Mumbai...
I booked it in a fit of excitement, and since then I've had a week of reading every thread on here telling me everything that's wrong with CW. :-/
I suppose that's a good thing as I am expecting very little now.
Mind you my only other Premium Cabin experience is VS Upper Class so I'm trying not to expect anything quite like that.