I didn't really find Amanda unlikeable at all.
She always had a smile on her face, and she did always try her best, even if she got it wrong.
For example, when she was stuffing sausage rolls in her face and was called up on stage - she slapped a smile on and up she went. I know it was all part of her charade and to make her look good, but she was also doing it for her kids / the football team.
Also, I loved Johannes, I thought he was great.