Very balanced draw, in my opinion. I would like to see Grigor play Rafa in the QF but I am not sure Grigor can handle Ferrer on clay in R4. He did beat him to win his first title but that was on a fast indoor court in Stockholm. Also, Ferrer has not been doing well so far this year so I expect him to try and jumpstart his season on the clay.
In the other half, I expect Nole and Fed to meet in the SF. Fognini and Berdych could be dangerous opponents, though.