Very good!
He is able to do this because he is clearly very talented and his car has different performance characteristics that enables him to make the overtakes.
He says that he struggles to overtake his team mate, for exactly the same reasons that Lewis struggled to overtake Nico (same car, same base performance accelerating on straights, braking for corners and getting round, low, medium and high speed corners).
Yup:
The Dutchman said he could understand Hamilton's difficulties, however, because he and Rosberg are driving equal machinery.
"With the Mercedes, maybe they have more problems when they are closer to each other," Verstappen said.
"Also their speed is higher, maybe it's a bit more difficult for them. It's difficult for me to comment, because I haven't driven that car.
"They are both on a very good pace and I have to say when one of the Toro Rossos is behind the other, it's very difficult to get past. Definitely if you have the same type of car, it's very hard.
"For us, we have very good cornering speed, so if we are behind a Lotus or a Sauber or a Force India, we always catch up in the fast corners, even when we are behind.
"That's different for sure. For them [Rosberg and Hamilton], it's equal everywhere - the corners, the straights.
"Then if you are behind, you lose a lot in fast corners, so I can understand that Lewis said that."