Personally, I find the food and wine on CX J to be very average compared to SQ (where as others mentioned have a BTC feature) and QF.
Hard product: I've finally managed to try the 77W new longhaul J product twice to/from Europe now. It was OK apart from the fact that was pretty hard to sleep on the side compared to the Skybed's on QF and old SQ J (never tried the new one yet!)!
+1 to the extra space though for drinks etc on the side.