Actually I am not too sure about that..
I liked him at Porto and he's been very unlucky to compete against Carvajal for that RB spot. I think he's a great player and with regular game time I can see him reaching his Porto level again.
Honestly I would had been happy if we considered him as Valencia cover/successor
Everyone I watched him for Real he was horrendous. A mate of mine whose a big Madrid fan also doesn't rate him at all.