It's good and bad in ways only EA can make a mode good and bad, it's really cool to have story elements, but the way they've done it everything is really contrived and forced......
I played it as Newcastle, you play 2 friendlies first, always the same two teams, one of your CB's always gets injured in the 2nd friendly which is against Galatasary, it's determined which defender will get injured, if you try not to use him you get a message "the chairman insists that Craig Moore play in this match", fortunately the Newcastle injury was only Craig Moore, I started as Barca and it was Márquez, for Liverpool Carragher, both much bigger losses and you lose them for the whole season, I won't spoil the whole story in case some people will still play it, basically they force certain players to be injured, certain players sent off, one will fall out with the club and eventually refuse to play for the club and you have to sell him, you're forced to buy and sell about 6 players during the mode and the players you buy all have to be 78+ so you end up with a star team of players who have nothing to do with the team you chose, you end up with "super team", which for me defeats the whole point of playing as a team I "support".
During the season some matches are skipped and the result and events are pre-decided, other matches you start off at a certain disadvantage, for example losing 1-0, penalty to the opposing team and you have to avoid losing and not concede more than 2 and there's only 20 mins left, save the penalty and you have a good chance, let it in and you'll struggle, stuff like that is somewhat interesting but as I mentioned the forced, contrived nature makes it boring and annoying.
To sum it up it's typical EA, they have implemented the mode in the cheapest, easiest way possible, instead of using good programming to have an intelligent game system which instead of forcing and contriving a linear path responds intelligently to the events of your own actions, maybe it'll be better in the future if they do it again but I don't it.