I only watched bits of the stream but he was okay for most of it. He played the beat before the KTF guitar solo on the hi hat when it's supposed to be on the tom and he played Lost Highway faster than he should have done. An experienced drummer would have no difficulty with Most of Tico's Bon Jovi work except for maybe Damned or Home bound Train which contain some tricky triplets. He must have been holed up with the band for a few days practising because he seemed to know what he was doing for the most part and he may even have had sheet music next to him at the show.