Nadal's fh is only good for clay. It sucks hard on faster surfaces, as evidenced by his lack of titles outside of clay.
But one thing I have to hand to him is his ability to serve-and-volley. That only comes from natural talent and great hands.
S&V is an archaic practice that has no place in today's game. Thankfully. 90's tennis was pure torture with net rushing clowns winning slams left and right. Today's game exposed their lack of game, talent and fitness. But this is a discussion for other time. Had Nadal the fortune of playing in an era where men had the height and strength of girls and winning a title required you to beat a couple of amateur clowns, he'd have 30 slams and 200 titles easily.