He was superb at times but had his usual lapses. That's my concern because he would survive vs players like Wawrinka and Berdych, but not Murray and Federer. And Rafa when he comes back. He won 16 of his 17 serving points in last set first 4 service games but went into 3 dueces serving for the match.
The only real lapse was when he got broken easily at the start of 2nd set. However, Berdych was superb in the 2nd set, so can't blame him.