Actually I tried the QF A380 F Class and to be honest, if you think CX's service is not up to scratch, you better stay away from QF. Maybe I had a bad crew. Also do note there are 14 pax vs 6 pax on CX.
The seat is nice, but the CX seat is nicer and wider.
The A380 is overhyped IMO - I am always a 747 person!