Looks ugly but it's pretty damn effective. Guy hits an absolute ton of winners when he's in form and has a superb backhand, drop shot and serve. Again, the serve can be his downfall much like Nishikori as it's either great or crap. I remember when he first came on tour he hit his 2nd serve as hard and fast as his first. When it worked it was great and rattled the top guys big time but when it didn't it just looked plain dense to not take some pace off. He's calmed down a bit in that regard now and hits his 2nd serve a bit slower at least.