Always liked Schurrle, sad to see him go but really his style of play doesn't suit ours at all. He will do well in Germany for sure, especially the way Wolfsburg play he will be able to really impress imo. Probably score 20+ goals a season in all comps at least.
Think Cuadrado is much more in the model of our current style of play (and players). He's tricky, can dribble and take a man on, and he's quick. I think he will thrive playing around similar players who he can combine with and be on the same wavelength.
See how it pans out though. Not sure if he'll go straight into the team or be expected to fight it out for a while before really getting a run.