After an awful start, losing his serve to love in the first game of the match, he competed very well for the first set and start of the second. Intensity went away and lost concentration - barely won points for patches. Cilic was solid, his level didn't dip at all and wasn't forced to raise at all either.
Nick's serve is already pretty great, but you could see the difference notably between his and Cilic's second serve. Cilic's has far more margin and kick, and better placement. His movement isn't great either, laterally or moving forward. ROS was pretty woeful overall, tbh. I could understand his logic - stepping in on the second to cut off the width and kick of the serve - but he was 1-2m inside the baseline for some of those returns and it rarely went his way. Especially on the ad court where a lot of his returns, of the second serve, where framed, mistimed or dumped half way up the net. His forehand is huge though, and his serve will become an even bigger weapon. His BH wasn't so consistent.
Cilic was obviously a class above though, most notably in concentration and consistency - but that's to be expected from a junior against a senior. Good signs are that he's already hanging with these guys pretty well (Stepanek for 3 sets, Cilic for the first set) and he still has so much room to improve.
Really impressed overall.