Classic, they had good chemistry together and brought out good elements together, they probably could have made an ill project or more songs together. Nas is quite adaptable actually, he has really dope chemistry with a number of artists, I think this is cause he's such a dope MC, he can be versatile. I like how he sounds with Mega, AZ, Mobb Deep, Damien etc. He's well rounded, some aspects may be a little outside his comfort zone but when he has a good match it usually works really well and he shines.