I really enjoyed this episode. The whole cast of SNW are really strong but Jess Bush has been a particular highlight - I'll admit I was cautious when I first heard they'd cast some Australian model as Chapel, but that caution was gone by the end of episode one and she's become easily one of my favourite characters. Ordinarily I don't tend to find that Star Trek romances do much for me but they've now got me invested in Chapel and Spock.
With hindsight my only mild criticism of the episode is the premise that a human Spock would be more emotional than the Spock we know. We constantly hear that Vulcans feel emotions more strongly than humans, but have learnt to embrace logic to control them - i.e. their nature is more emotional than humans but their nurture counterbalances this. So wouldn't a human Spock (with biologically human nature, but the nurture that Spock carries from his life experience being raised as a Vulcan) actually be super rational and logical?