DD Rebecca, has seen the recordings of the show several times, and said that Kate was the ultimate professional. Becca said that once or twice things went badly wrong, and Kate had no information coming through her earpiece, which did make her angry off screen, but she covered for it magnificently on screen. She also said that behind the scenes she was very supportive to all the contestants, so it's a bit sad I think.
Simon, Louis, and Sharon were all very pleasant to everyone.