what he does really well is show the thinly veiled fake excitement of yank presenters, while we lose Cowell's sometimes cracking one liners. not the best bargain to make, is it.
However, he did seem a little more subdued than usual this week.
I'm sure when he settles into working in the UK and to all the regional accents etc he will be his usual OTT self.
I do, which has surprised me as I haven't really liked him on America's Got Talent. He does seem a bit unsure of himself at times but he did well for the first show and he'll probably get more settled in time.