For his first year he's definitely impressed.
Out of the other two new boys Artem's choeography really stands out by a mile! Jared is a sweet guy but I do find his routies forgetful sadly. Robin is also a nice guy too but, again, I struggle to remember some of the routines that he and Patsy have done. I think the judges were right when they refered to Patsy as 'too safe' (which I suppose is down to Robin in terms of the routines they produced). However I do think Robin has done enough for another series but I'm not so sure about Jared (although I do like him as a person).
My housemate thought Artem was abit up himself at first (by his manner) but I just think he's that quiet, casual and slightly standoff-ish type of person naturally. My HM thought Artem didn't even like Kara (because of how he is with her in training) so therefore found it hard to like him because she really likes Kara -as do I. But now I think she sees that he's got more warmer and smiley as the series has gone on and recognises that he is just very strict with Kara in order to get the best out of her (not to be mean to her).