I was at the game last night, and it was incredible. He made it look so easy. Sussex really struggled due to not having an out-and-out quick playing. Chambers and Masters were noticeably quicker than any of the Sussex bowlers, and made the big hits that they required a lot harder.
Hamilton-Brown, as the only spinner, was bowling far too quick. I presume this was due to the pressure of having big-hitting batsmen, but Kaniera and Middlebrook got wickets by flighting it a bit more, whereas Hamilton-Brown was getting the ball to the other end as soon as possible.