I'll be honest, I didn't play this game for long and I didn't try all the game modes. I played 2 games, one normal game and one as the banker. The game is boring, slow and repetitive. Your character and the other competitors have two reactions to boxes, celebration or despair, even on meaningless boxes. Noel Edmunds chat is also very limited and poor, aparently eliminating the £3,000 box on my 4th turn was catastrophic. Playing as the banker was much worse than the normal game though, you literally just have to watch the computer play and click through all noels repetitive uninspiring chat then make offers when necessary - I don't know what I was expecting but playing as the banker was awful.
There are other features, however, this game made me so bored so quickly so I didn't bother trying them out, I doubt I will ever play this game again. If you like the TV program, I doubt you will enjoy this game for long.