He's not particularly original, though he is refreshing as a Vulcan who is not tormented with angst from being either half human or deeply flawed. He's an older mainstream Vulcan with hobbies (orchid growing), a family back in the Alpha quadrant he misses, a long term friendship in Janeway and some comfort zone challenges in the form of Neelix. He's one of the least dysfunctional Vulcans we see in Trek and a huge asset to the crew.
What did you see that was "bad"?