I feel for him a bit. He's clearly not been good for us, but don't think he's as bad as some make out. He's very highly regarded in Chile and Barcelona, and you don't have the career he's had if you're shit. Don't know if its confidence or the culture that he's struggling with, but few could argue it's been a good move. Actually think he'll stay another season as back up to a new keeper, but a return to Spain might be the better option for all concerned.
There's a Bravo thread where all this can be discussed though!