To be honest he wasn't average in Spain, he had quite a good record for Rayo Vallecano and performed well in most games. At first I thought it would be a flash in the pan but his movement is great and his finishing is fantastic. I'm hoping he gets a Spanish call up, as there isn't many decent strikers in Spain at the moment and he fits the bill well. I think he can continue to perform like this as Swansea play incredible football which suits him.
As for the "English opinion" - he's a revelation here at the moment, a guy no one can hate on.