I really want to see the new Continues episode before I make a full judgement on Vic's Kirk. From what I have seen, he's got the body language down pat but the voice doesn't work as well for me. I think part of it is that the look is so convincing that Vic's very different voice stands out more.
Another thing I like is that Continues and Phase 2 seem to be taking very different but complementary directions, with Continues following directly on from TOS and Phase 2 drawing from the unfilmed 70's series and even TAS.
Then again, I'll take all the TOS-era fan films I can get.